Home / 3,988.50-5,982.76-1,649.84

Finding the Fourth Proportional to 3,988.50, 5,982.76 and 1,649.84

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Solution

The fourth proportional to 3,988.50, 5,982.76 and 1,649.84 is: 2,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.50 : 5,982.76 = 1,649.84 : x
  2. Step 2: Convert to fraction form
    3,988.50/5,982.76 = 1,649.84/x
  3. Step 3: Cross multiply
    3,988.50x = 5,982.76 × 1,649.84
  4. Step 4: Simplify right side
    3,988.50x = 9,870,596.76
  5. Step 5: Solve for x
    x = 9,870,596.76/3,988.50
  6. Step 6: Final answer
    x = 2,474.76

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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.