Home / 5,915.52-8,161.95-3,898.71

Finding the Fourth Proportional to 5,915.52, 8,161.95 and 3,898.71

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Solution

The fourth proportional to 5,915.52, 8,161.95 and 3,898.71 is: 5,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.52 : 8,161.95 = 3,898.71 : x
  2. Step 2: Convert to fraction form
    5,915.52/8,161.95 = 3,898.71/x
  3. Step 3: Cross multiply
    5,915.52x = 8,161.95 × 3,898.71
  4. Step 4: Simplify right side
    5,915.52x = 31,821,076.08
  5. Step 5: Solve for x
    x = 31,821,076.08/5,915.52
  6. Step 6: Final answer
    x = 5,379.25

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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.