Home / 2,567.20-3,539.76-1,781.92

Finding the Fourth Proportional to 2,567.20, 3,539.76 and 1,781.92

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Solution

The fourth proportional to 2,567.20, 3,539.76 and 1,781.92 is: 2,456.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.20 : 3,539.76 = 1,781.92 : x
  2. Step 2: Convert to fraction form
    2,567.20/3,539.76 = 1,781.92/x
  3. Step 3: Cross multiply
    2,567.20x = 3,539.76 × 1,781.92
  4. Step 4: Simplify right side
    2,567.20x = 6,307,569.14
  5. Step 5: Solve for x
    x = 6,307,569.14/2,567.20
  6. Step 6: Final answer
    x = 2,456.98

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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.