Home / 4,188.91-5,781.45-2,862.13

Finding the Fourth Proportional to 4,188.91, 5,781.45 and 2,862.13

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Solution

The fourth proportional to 4,188.91, 5,781.45 and 2,862.13 is: 3,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.91 : 5,781.45 = 2,862.13 : x
  2. Step 2: Convert to fraction form
    4,188.91/5,781.45 = 2,862.13/x
  3. Step 3: Cross multiply
    4,188.91x = 5,781.45 × 2,862.13
  4. Step 4: Simplify right side
    4,188.91x = 16,547,261.49
  5. Step 5: Solve for x
    x = 16,547,261.49/4,188.91
  6. Step 6: Final answer
    x = 3,950.25

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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.