Home / 5,405.88-8,055.82-5,229.70

Finding the Fourth Proportional to 5,405.88, 8,055.82 and 5,229.70

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Solution

The fourth proportional to 5,405.88, 8,055.82 and 5,229.70 is: 7,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.88 : 8,055.82 = 5,229.70 : x
  2. Step 2: Convert to fraction form
    5,405.88/8,055.82 = 5,229.70/x
  3. Step 3: Cross multiply
    5,405.88x = 8,055.82 × 5,229.70
  4. Step 4: Simplify right side
    5,405.88x = 42,129,521.85
  5. Step 5: Solve for x
    x = 42,129,521.85/5,405.88
  6. Step 6: Final answer
    x = 7,793.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.