Home / 5,278.26-7,915.16-1,581.01

Finding the Fourth Proportional to 5,278.26, 7,915.16 and 1,581.01

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Solution

The fourth proportional to 5,278.26, 7,915.16 and 1,581.01 is: 2,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.26 : 7,915.16 = 1,581.01 : x
  2. Step 2: Convert to fraction form
    5,278.26/7,915.16 = 1,581.01/x
  3. Step 3: Cross multiply
    5,278.26x = 7,915.16 × 1,581.01
  4. Step 4: Simplify right side
    5,278.26x = 12,513,939.21
  5. Step 5: Solve for x
    x = 12,513,939.21/5,278.26
  6. Step 6: Final answer
    x = 2,370.85

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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.