Home / 1,613.50-2,416.14-1,126.89

Finding the Fourth Proportional to 1,613.50, 2,416.14 and 1,126.89

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Solution

The fourth proportional to 1,613.50, 2,416.14 and 1,126.89 is: 1,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.50 : 2,416.14 = 1,126.89 : x
  2. Step 2: Convert to fraction form
    1,613.50/2,416.14 = 1,126.89/x
  3. Step 3: Cross multiply
    1,613.50x = 2,416.14 × 1,126.89
  4. Step 4: Simplify right side
    1,613.50x = 2,722,724.00
  5. Step 5: Solve for x
    x = 2,722,724.00/1,613.50
  6. Step 6: Final answer
    x = 1,687.47

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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.