Home / 5,590.10-8,385.15-5,167.70

Finding the Fourth Proportional to 5,590.10, 8,385.15 and 5,167.70

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Solution

The fourth proportional to 5,590.10, 8,385.15 and 5,167.70 is: 7,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.10 : 8,385.15 = 5,167.70 : x
  2. Step 2: Convert to fraction form
    5,590.10/8,385.15 = 5,167.70/x
  3. Step 3: Cross multiply
    5,590.10x = 8,385.15 × 5,167.70
  4. Step 4: Simplify right side
    5,590.10x = 43,331,939.66
  5. Step 5: Solve for x
    x = 43,331,939.66/5,590.10
  6. Step 6: Final answer
    x = 7,751.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.