Home / 3,187.76-4,399.61-1,862.24

Finding the Fourth Proportional to 3,187.76, 4,399.61 and 1,862.24

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Solution

The fourth proportional to 3,187.76, 4,399.61 and 1,862.24 is: 2,570.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.76 : 4,399.61 = 1,862.24 : x
  2. Step 2: Convert to fraction form
    3,187.76/4,399.61 = 1,862.24/x
  3. Step 3: Cross multiply
    3,187.76x = 4,399.61 × 1,862.24
  4. Step 4: Simplify right side
    3,187.76x = 8,193,098.42
  5. Step 5: Solve for x
    x = 8,193,098.42/3,187.76
  6. Step 6: Final answer
    x = 2,570.18

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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.