Home / 1,613.28-2,225.97-914.61

Finding the Fourth Proportional to 1,613.28, 2,225.97 and 914.61

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Solution

The fourth proportional to 1,613.28, 2,225.97 and 914.61 is: 1,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.28 : 2,225.97 = 914.61 : x
  2. Step 2: Convert to fraction form
    1,613.28/2,225.97 = 914.61/x
  3. Step 3: Cross multiply
    1,613.28x = 2,225.97 × 914.61
  4. Step 4: Simplify right side
    1,613.28x = 2,035,894.42
  5. Step 5: Solve for x
    x = 2,035,894.42/1,613.28
  6. Step 6: Final answer
    x = 1,261.96

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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.