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Finding the Fourth Proportional to 6,877.28, 10,316.28 and 4,105.28

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Solution

The fourth proportional to 6,877.28, 10,316.28 and 4,105.28 is: 6,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.28 : 10,316.28 = 4,105.28 : x
  2. Step 2: Convert to fraction form
    6,877.28/10,316.28 = 4,105.28/x
  3. Step 3: Cross multiply
    6,877.28x = 10,316.28 × 4,105.28
  4. Step 4: Simplify right side
    6,877.28x = 42,351,217.96
  5. Step 5: Solve for x
    x = 42,351,217.96/6,877.28
  6. Step 6: Final answer
    x = 6,158.13

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1.5x scale

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.