Home / 3,685.20-5,084.48-2,356.61

Finding the Fourth Proportional to 3,685.20, 5,084.48 and 2,356.61

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Solution

The fourth proportional to 3,685.20, 5,084.48 and 2,356.61 is: 3,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.20 : 5,084.48 = 2,356.61 : x
  2. Step 2: Convert to fraction form
    3,685.20/5,084.48 = 2,356.61/x
  3. Step 3: Cross multiply
    3,685.20x = 5,084.48 × 2,356.61
  4. Step 4: Simplify right side
    3,685.20x = 11,982,099.21
  5. Step 5: Solve for x
    x = 11,982,099.21/3,685.20
  6. Step 6: Final answer
    x = 3,251.41

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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.