Home / 3,187.43-4,779.42-1,542.39

Finding the Fourth Proportional to 3,187.43, 4,779.42 and 1,542.39

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Solution

The fourth proportional to 3,187.43, 4,779.42 and 1,542.39 is: 2,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.43 : 4,779.42 = 1,542.39 : x
  2. Step 2: Convert to fraction form
    3,187.43/4,779.42 = 1,542.39/x
  3. Step 3: Cross multiply
    3,187.43x = 4,779.42 × 1,542.39
  4. Step 4: Simplify right side
    3,187.43x = 7,371,729.61
  5. Step 5: Solve for x
    x = 7,371,729.61/3,187.43
  6. Step 6: Final answer
    x = 2,312.75

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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.