Home / 7,135.20-9,845.82-4,150.89

Finding the Fourth Proportional to 7,135.20, 9,845.82 and 4,150.89

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Solution

The fourth proportional to 7,135.20, 9,845.82 and 4,150.89 is: 5,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.20 : 9,845.82 = 4,150.89 : x
  2. Step 2: Convert to fraction form
    7,135.20/9,845.82 = 4,150.89/x
  3. Step 3: Cross multiply
    7,135.20x = 9,845.82 × 4,150.89
  4. Step 4: Simplify right side
    7,135.20x = 40,868,915.78
  5. Step 5: Solve for x
    x = 40,868,915.78/7,135.20
  6. Step 6: Final answer
    x = 5,727.79

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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.