Home / 1,613.20-2,417.10-1,337.80

Finding the Fourth Proportional to 1,613.20, 2,417.10 and 1,337.80

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Solution

The fourth proportional to 1,613.20, 2,417.10 and 1,337.80 is: 2,004.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.20 : 2,417.10 = 1,337.80 : x
  2. Step 2: Convert to fraction form
    1,613.20/2,417.10 = 1,337.80/x
  3. Step 3: Cross multiply
    1,613.20x = 2,417.10 × 1,337.80
  4. Step 4: Simplify right side
    1,613.20x = 3,233,596.38
  5. Step 5: Solve for x
    x = 3,233,596.38/1,613.20
  6. Step 6: Final answer
    x = 2,004.46

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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.