Home / 5,137.30-7,089.07-3,147.59

Finding the Fourth Proportional to 5,137.30, 7,089.07 and 3,147.59

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Solution

The fourth proportional to 5,137.30, 7,089.07 and 3,147.59 is: 4,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.30 : 7,089.07 = 3,147.59 : x
  2. Step 2: Convert to fraction form
    5,137.30/7,089.07 = 3,147.59/x
  3. Step 3: Cross multiply
    5,137.30x = 7,089.07 × 3,147.59
  4. Step 4: Simplify right side
    5,137.30x = 22,313,442.53
  5. Step 5: Solve for x
    x = 22,313,442.53/5,137.30
  6. Step 6: Final answer
    x = 4,343.42

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1.5x scale

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.