Home / 2,892.18-3,991.20-1,565.92

Finding the Fourth Proportional to 2,892.18, 3,991.20 and 1,565.92

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Solution

The fourth proportional to 2,892.18, 3,991.20 and 1,565.92 is: 2,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.18 : 3,991.20 = 1,565.92 : x
  2. Step 2: Convert to fraction form
    2,892.18/3,991.20 = 1,565.92/x
  3. Step 3: Cross multiply
    2,892.18x = 3,991.20 × 1,565.92
  4. Step 4: Simplify right side
    2,892.18x = 6,249,899.90
  5. Step 5: Solve for x
    x = 6,249,899.90/2,892.18
  6. Step 6: Final answer
    x = 2,160.97

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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.