Home / 5,915.40-8,160.41-3,679.91

Finding the Fourth Proportional to 5,915.40, 8,160.41 and 3,679.91

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Solution

The fourth proportional to 5,915.40, 8,160.41 and 3,679.91 is: 5,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.40 : 8,160.41 = 3,679.91 : x
  2. Step 2: Convert to fraction form
    5,915.40/8,160.41 = 3,679.91/x
  3. Step 3: Cross multiply
    5,915.40x = 8,160.41 × 3,679.91
  4. Step 4: Simplify right side
    5,915.40x = 30,029,515.16
  5. Step 5: Solve for x
    x = 30,029,515.16/5,915.40
  6. Step 6: Final answer
    x = 5,076.50

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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.