Home / 3,742.40-5,613.60-3,140.98

Finding the Fourth Proportional to 3,742.40, 5,613.60 and 3,140.98

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Solution

The fourth proportional to 3,742.40, 5,613.60 and 3,140.98 is: 4,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.40 : 5,613.60 = 3,140.98 : x
  2. Step 2: Convert to fraction form
    3,742.40/5,613.60 = 3,140.98/x
  3. Step 3: Cross multiply
    3,742.40x = 5,613.60 × 3,140.98
  4. Step 4: Simplify right side
    3,742.40x = 17,632,205.33
  5. Step 5: Solve for x
    x = 17,632,205.33/3,742.40
  6. Step 6: Final answer
    x = 4,711.47

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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.