Home / 3,200.32-4,801.87-1,121.81

Finding the Fourth Proportional to 3,200.32, 4,801.87 and 1,121.81

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Solution

The fourth proportional to 3,200.32, 4,801.87 and 1,121.81 is: 1,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.32 : 4,801.87 = 1,121.81 : x
  2. Step 2: Convert to fraction form
    3,200.32/4,801.87 = 1,121.81/x
  3. Step 3: Cross multiply
    3,200.32x = 4,801.87 × 1,121.81
  4. Step 4: Simplify right side
    3,200.32x = 5,386,785.78
  5. Step 5: Solve for x
    x = 5,386,785.78/3,200.32
  6. Step 6: Final answer
    x = 1,683.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.