Home / 7,401.28-10,213.68-4,257.76

Finding the Fourth Proportional to 7,401.28, 10,213.68 and 4,257.76

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Solution

The fourth proportional to 7,401.28, 10,213.68 and 4,257.76 is: 5,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401.28 : 10,213.68 = 4,257.76 : x
  2. Step 2: Convert to fraction form
    7,401.28/10,213.68 = 4,257.76/x
  3. Step 3: Cross multiply
    7,401.28x = 10,213.68 × 4,257.76
  4. Step 4: Simplify right side
    7,401.28x = 43,487,398.16
  5. Step 5: Solve for x
    x = 43,487,398.16/7,401.28
  6. Step 6: Final answer
    x = 5,875.66

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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.