Home / 1,747.30-2,613.65-1,399.20

Finding the Fourth Proportional to 1,747.30, 2,613.65 and 1,399.20

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Solution

The fourth proportional to 1,747.30, 2,613.65 and 1,399.20 is: 2,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.30 : 2,613.65 = 1,399.20 : x
  2. Step 2: Convert to fraction form
    1,747.30/2,613.65 = 1,399.20/x
  3. Step 3: Cross multiply
    1,747.30x = 2,613.65 × 1,399.20
  4. Step 4: Simplify right side
    1,747.30x = 3,657,012.08
  5. Step 5: Solve for x
    x = 3,657,012.08/1,747.30
  6. Step 6: Final answer
    x = 2,092.95

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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.