Home / 7,155.33-9,874.61-4,170.69

Finding the Fourth Proportional to 7,155.33, 9,874.61 and 4,170.69

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Solution

The fourth proportional to 7,155.33, 9,874.61 and 4,170.69 is: 5,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.33 : 9,874.61 = 4,170.69 : x
  2. Step 2: Convert to fraction form
    7,155.33/9,874.61 = 4,170.69/x
  3. Step 3: Cross multiply
    7,155.33x = 9,874.61 × 4,170.69
  4. Step 4: Simplify right side
    7,155.33x = 41,183,937.18
  5. Step 5: Solve for x
    x = 41,183,937.18/7,155.33
  6. Step 6: Final answer
    x = 5,755.70

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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.