Home / 7,612.38-10,505.03-4,255.20

Finding the Fourth Proportional to 7,612.38, 10,505.03 and 4,255.20

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Solution

The fourth proportional to 7,612.38, 10,505.03 and 4,255.20 is: 5,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.38 : 10,505.03 = 4,255.20 : x
  2. Step 2: Convert to fraction form
    7,612.38/10,505.03 = 4,255.20/x
  3. Step 3: Cross multiply
    7,612.38x = 10,505.03 × 4,255.20
  4. Step 4: Simplify right side
    7,612.38x = 44,700,982.38
  5. Step 5: Solve for x
    x = 44,700,982.38/7,612.38
  6. Step 6: Final answer
    x = 5,872.14

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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.