Home / 3,742.40-5,613.42-1,277.12

Finding the Fourth Proportional to 3,742.40, 5,613.42 and 1,277.12

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Solution

The fourth proportional to 3,742.40, 5,613.42 and 1,277.12 is: 1,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.40 : 5,613.42 = 1,277.12 : x
  2. Step 2: Convert to fraction form
    3,742.40/5,613.42 = 1,277.12/x
  3. Step 3: Cross multiply
    3,742.40x = 5,613.42 × 1,277.12
  4. Step 4: Simplify right side
    3,742.40x = 7,169,010.95
  5. Step 5: Solve for x
    x = 7,169,010.95/3,742.40
  6. Step 6: Final answer
    x = 1,915.62

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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.