Home / 7,344.60-10,135.56-3,987.42

Finding the Fourth Proportional to 7,344.60, 10,135.56 and 3,987.42

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Solution

The fourth proportional to 7,344.60, 10,135.56 and 3,987.42 is: 5,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.60 : 10,135.56 = 3,987.42 : x
  2. Step 2: Convert to fraction form
    7,344.60/10,135.56 = 3,987.42/x
  3. Step 3: Cross multiply
    7,344.60x = 10,135.56 × 3,987.42
  4. Step 4: Simplify right side
    7,344.60x = 40,414,683.98
  5. Step 5: Solve for x
    x = 40,414,683.98/7,344.60
  6. Step 6: Final answer
    x = 5,502.64

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1.5x scale

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.