Home / 2,562.95-3,839.76-1,781.30

Finding the Fourth Proportional to 2,562.95, 3,839.76 and 1,781.30

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Solution

The fourth proportional to 2,562.95, 3,839.76 and 1,781.30 is: 2,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.95 : 3,839.76 = 1,781.30 : x
  2. Step 2: Convert to fraction form
    2,562.95/3,839.76 = 1,781.30/x
  3. Step 3: Cross multiply
    2,562.95x = 3,839.76 × 1,781.30
  4. Step 4: Simplify right side
    2,562.95x = 6,839,745.29
  5. Step 5: Solve for x
    x = 6,839,745.29/2,562.95
  6. Step 6: Final answer
    x = 2,668.71

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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.