Home / 4,103.80-5,679.49-4,005.52

Finding the Fourth Proportional to 4,103.80, 5,679.49 and 4,005.52

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Solution

The fourth proportional to 4,103.80, 5,679.49 and 4,005.52 is: 5,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,103.80 : 5,679.49 = 4,005.52 : x
  2. Step 2: Convert to fraction form
    4,103.80/5,679.49 = 4,005.52/x
  3. Step 3: Cross multiply
    4,103.80x = 5,679.49 × 4,005.52
  4. Step 4: Simplify right side
    4,103.80x = 22,749,310.78
  5. Step 5: Solve for x
    x = 22,749,310.78/4,103.80
  6. Step 6: Final answer
    x = 5,543.47

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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.