Home / 3,621.60-5,432.81-1,155.83

Finding the Fourth Proportional to 3,621.60, 5,432.81 and 1,155.83

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Solution

The fourth proportional to 3,621.60, 5,432.81 and 1,155.83 is: 1,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.60 : 5,432.81 = 1,155.83 : x
  2. Step 2: Convert to fraction form
    3,621.60/5,432.81 = 1,155.83/x
  3. Step 3: Cross multiply
    3,621.60x = 5,432.81 × 1,155.83
  4. Step 4: Simplify right side
    3,621.60x = 6,279,371.84
  5. Step 5: Solve for x
    x = 6,279,371.84/3,621.60
  6. Step 6: Final answer
    x = 1,733.87

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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.