Home / 7,489.57-10,335.62-4,086.61

Finding the Fourth Proportional to 7,489.57, 10,335.62 and 4,086.61

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Solution

The fourth proportional to 7,489.57, 10,335.62 and 4,086.61 is: 5,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.57 : 10,335.62 = 4,086.61 : x
  2. Step 2: Convert to fraction form
    7,489.57/10,335.62 = 4,086.61/x
  3. Step 3: Cross multiply
    7,489.57x = 10,335.62 × 4,086.61
  4. Step 4: Simplify right side
    7,489.57x = 42,237,648.05
  5. Step 5: Solve for x
    x = 42,237,648.05/7,489.57
  6. Step 6: Final answer
    x = 5,639.53

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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.