Home / 5,147.67-7,103.91-3,130.41

Finding the Fourth Proportional to 5,147.67, 7,103.91 and 3,130.41

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Solution

The fourth proportional to 5,147.67, 7,103.91 and 3,130.41 is: 4,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.67 : 7,103.91 = 3,130.41 : x
  2. Step 2: Convert to fraction form
    5,147.67/7,103.91 = 3,130.41/x
  3. Step 3: Cross multiply
    5,147.67x = 7,103.91 × 3,130.41
  4. Step 4: Simplify right side
    5,147.67x = 22,238,150.90
  5. Step 5: Solve for x
    x = 22,238,150.90/5,147.67
  6. Step 6: Final answer
    x = 4,320.04

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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.