Home / 5,278.67-7,915.09-3,614.70

Finding the Fourth Proportional to 5,278.67, 7,915.09 and 3,614.70

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Solution

The fourth proportional to 5,278.67, 7,915.09 and 3,614.70 is: 5,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.67 : 7,915.09 = 3,614.70 : x
  2. Step 2: Convert to fraction form
    5,278.67/7,915.09 = 3,614.70/x
  3. Step 3: Cross multiply
    5,278.67x = 7,915.09 × 3,614.70
  4. Step 4: Simplify right side
    5,278.67x = 28,610,679.71
  5. Step 5: Solve for x
    x = 28,610,679.71/5,278.67
  6. Step 6: Final answer
    x = 5,420.05

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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.