Home / 5,342.08-7,371.28-3,103.80

Finding the Fourth Proportional to 5,342.08, 7,371.28 and 3,103.80

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Solution

The fourth proportional to 5,342.08, 7,371.28 and 3,103.80 is: 4,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.08 : 7,371.28 = 3,103.80 : x
  2. Step 2: Convert to fraction form
    5,342.08/7,371.28 = 3,103.80/x
  3. Step 3: Cross multiply
    5,342.08x = 7,371.28 × 3,103.80
  4. Step 4: Simplify right side
    5,342.08x = 22,878,978.86
  5. Step 5: Solve for x
    x = 22,878,978.86/5,342.08
  6. Step 6: Final answer
    x = 4,282.78

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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.