Home / 3,442.91-4,745.76-3,156.87

Finding the Fourth Proportional to 3,442.91, 4,745.76 and 3,156.87

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Solution

The fourth proportional to 3,442.91, 4,745.76 and 3,156.87 is: 4,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.91 : 4,745.76 = 3,156.87 : x
  2. Step 2: Convert to fraction form
    3,442.91/4,745.76 = 3,156.87/x
  3. Step 3: Cross multiply
    3,442.91x = 4,745.76 × 3,156.87
  4. Step 4: Simplify right side
    3,442.91x = 14,981,753.33
  5. Step 5: Solve for x
    x = 14,981,753.33/3,442.91
  6. Step 6: Final answer
    x = 4,351.49

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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.