Home / 3,102,807.60-4,654,211.40-2,146,213.80

Finding the Fourth Proportional to 3,102,807.60, 4,654,211.40 and 2,146,213.80

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Solution

The fourth proportional to 3,102,807.60, 4,654,211.40 and 2,146,213.80 is: 3,219,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102,807.60 : 4,654,211.40 = 2,146,213.80 : x
  2. Step 2: Convert to fraction form
    3,102,807.60/4,654,211.40 = 2,146,213.80/x
  3. Step 3: Cross multiply
    3,102,807.60x = 4,654,211.40 × 2,146,213.80
  4. Step 4: Simplify right side
    3,102,807.60x = 9,988,932,734,797.32
  5. Step 5: Solve for x
    x = 9,988,932,734,797.32/3,102,807.60
  6. Step 6: Final answer
    x = 3,219,320.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.