Home / 3,613.50-5,421.11-1,114.61

Finding the Fourth Proportional to 3,613.50, 5,421.11 and 1,114.61

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Solution

The fourth proportional to 3,613.50, 5,421.11 and 1,114.61 is: 1,672.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.50 : 5,421.11 = 1,114.61 : x
  2. Step 2: Convert to fraction form
    3,613.50/5,421.11 = 1,114.61/x
  3. Step 3: Cross multiply
    3,613.50x = 5,421.11 × 1,114.61
  4. Step 4: Simplify right side
    3,613.50x = 6,042,390.74
  5. Step 5: Solve for x
    x = 6,042,390.74/3,613.50
  6. Step 6: Final answer
    x = 1,672.17

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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.