Home / 2,581.80-3,562.88-1,402.85

Finding the Fourth Proportional to 2,581.80, 3,562.88 and 1,402.85

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Solution

The fourth proportional to 2,581.80, 3,562.88 and 1,402.85 is: 1,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.80 : 3,562.88 = 1,402.85 : x
  2. Step 2: Convert to fraction form
    2,581.80/3,562.88 = 1,402.85/x
  3. Step 3: Cross multiply
    2,581.80x = 3,562.88 × 1,402.85
  4. Step 4: Simplify right side
    2,581.80x = 4,998,161.38
  5. Step 5: Solve for x
    x = 4,998,161.38/2,581.80
  6. Step 6: Final answer
    x = 1,935.92

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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.