Home / 3,230.32-4,458.34-1,972.11

Finding the Fourth Proportional to 3,230.32, 4,458.34 and 1,972.11

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Solution

The fourth proportional to 3,230.32, 4,458.34 and 1,972.11 is: 2,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.32 : 4,458.34 = 1,972.11 : x
  2. Step 2: Convert to fraction form
    3,230.32/4,458.34 = 1,972.11/x
  3. Step 3: Cross multiply
    3,230.32x = 4,458.34 × 1,972.11
  4. Step 4: Simplify right side
    3,230.32x = 8,792,336.90
  5. Step 5: Solve for x
    x = 8,792,336.90/3,230.32
  6. Step 6: Final answer
    x = 2,721.82

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Half scale
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Double scale
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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.