Home / 3,230.76-4,458.93-1,972.55

Finding the Fourth Proportional to 3,230.76, 4,458.93 and 1,972.55

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Solution

The fourth proportional to 3,230.76, 4,458.93 and 1,972.55 is: 2,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.76 : 4,458.93 = 1,972.55 : x
  2. Step 2: Convert to fraction form
    3,230.76/4,458.93 = 1,972.55/x
  3. Step 3: Cross multiply
    3,230.76x = 4,458.93 × 1,972.55
  4. Step 4: Simplify right side
    3,230.76x = 8,795,447.47
  5. Step 5: Solve for x
    x = 8,795,447.47/3,230.76
  6. Step 6: Final answer
    x = 2,722.41

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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.