Home / 7,177.50-10,766.88-1,983.42

Finding the Fourth Proportional to 7,177.50, 10,766.88 and 1,983.42

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Solution

The fourth proportional to 7,177.50, 10,766.88 and 1,983.42 is: 2,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.50 : 10,766.88 = 1,983.42 : x
  2. Step 2: Convert to fraction form
    7,177.50/10,766.88 = 1,983.42/x
  3. Step 3: Cross multiply
    7,177.50x = 10,766.88 × 1,983.42
  4. Step 4: Simplify right side
    7,177.50x = 21,355,245.13
  5. Step 5: Solve for x
    x = 21,355,245.13/7,177.50
  6. Step 6: Final answer
    x = 2,975.30

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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.