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Finding the Fourth Proportional to 7,333.32, 10,119.92 and 3,976.20

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Solution

The fourth proportional to 7,333.32, 10,119.92 and 3,976.20 is: 5,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,333.32 : 10,119.92 = 3,976.20 : x
  2. Step 2: Convert to fraction form
    7,333.32/10,119.92 = 3,976.20/x
  3. Step 3: Cross multiply
    7,333.32x = 10,119.92 × 3,976.20
  4. Step 4: Simplify right side
    7,333.32x = 40,238,825.90
  5. Step 5: Solve for x
    x = 40,238,825.90/7,333.32
  6. Step 6: Final answer
    x = 5,487.12

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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.