Home / 4,648.10-6,972.15-3,090.20

Finding the Fourth Proportional to 4,648.10, 6,972.15 and 3,090.20

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Solution

The fourth proportional to 4,648.10, 6,972.15 and 3,090.20 is: 4,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,648.10 : 6,972.15 = 3,090.20 : x
  2. Step 2: Convert to fraction form
    4,648.10/6,972.15 = 3,090.20/x
  3. Step 3: Cross multiply
    4,648.10x = 6,972.15 × 3,090.20
  4. Step 4: Simplify right side
    4,648.10x = 21,545,337.93
  5. Step 5: Solve for x
    x = 21,545,337.93/4,648.10
  6. Step 6: Final answer
    x = 4,635.30

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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.