Home / 3,432.50-5,148.75-1,212.98

Finding the Fourth Proportional to 3,432.50, 5,148.75 and 1,212.98

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Solution

The fourth proportional to 3,432.50, 5,148.75 and 1,212.98 is: 1,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.50 : 5,148.75 = 1,212.98 : x
  2. Step 2: Convert to fraction form
    3,432.50/5,148.75 = 1,212.98/x
  3. Step 3: Cross multiply
    3,432.50x = 5,148.75 × 1,212.98
  4. Step 4: Simplify right side
    3,432.50x = 6,245,298.97
  5. Step 5: Solve for x
    x = 6,245,298.97/3,432.50
  6. Step 6: Final answer
    x = 1,819.46

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Double scale
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Similar ratio
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1.5x scale

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.