Home / 3,892.08-5,371.08-2,320.20

Finding the Fourth Proportional to 3,892.08, 5,371.08 and 2,320.20

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Solution

The fourth proportional to 3,892.08, 5,371.08 and 2,320.20 is: 3,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.08 : 5,371.08 = 2,320.20 : x
  2. Step 2: Convert to fraction form
    3,892.08/5,371.08 = 2,320.20/x
  3. Step 3: Cross multiply
    3,892.08x = 5,371.08 × 2,320.20
  4. Step 4: Simplify right side
    3,892.08x = 12,461,979.82
  5. Step 5: Solve for x
    x = 12,461,979.82/3,892.08
  6. Step 6: Final answer
    x = 3,201.88

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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.