Home / 4,309.12-5,946.60-2,420.78

Finding the Fourth Proportional to 4,309.12, 5,946.60 and 2,420.78

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Solution

The fourth proportional to 4,309.12, 5,946.60 and 2,420.78 is: 3,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.12 : 5,946.60 = 2,420.78 : x
  2. Step 2: Convert to fraction form
    4,309.12/5,946.60 = 2,420.78/x
  3. Step 3: Cross multiply
    4,309.12x = 5,946.60 × 2,420.78
  4. Step 4: Simplify right side
    4,309.12x = 14,395,423.14
  5. Step 5: Solve for x
    x = 14,395,423.14/4,309.12
  6. Step 6: Final answer
    x = 3,340.69

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.