Home / 3,929.19-5,892.52-1,296.20

Finding the Fourth Proportional to 3,929.19, 5,892.52 and 1,296.20

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Solution

The fourth proportional to 3,929.19, 5,892.52 and 1,296.20 is: 1,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.19 : 5,892.52 = 1,296.20 : x
  2. Step 2: Convert to fraction form
    3,929.19/5,892.52 = 1,296.20/x
  3. Step 3: Cross multiply
    3,929.19x = 5,892.52 × 1,296.20
  4. Step 4: Simplify right side
    3,929.19x = 7,637,884.42
  5. Step 5: Solve for x
    x = 7,637,884.42/3,929.19
  6. Step 6: Final answer
    x = 1,943.88

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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.