Home / 7,117.92-10,677.42-1,923.72

Finding the Fourth Proportional to 7,117.92, 10,677.42 and 1,923.72

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Solution

The fourth proportional to 7,117.92, 10,677.42 and 1,923.72 is: 2,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.92 : 10,677.42 = 1,923.72 : x
  2. Step 2: Convert to fraction form
    7,117.92/10,677.42 = 1,923.72/x
  3. Step 3: Cross multiply
    7,117.92x = 10,677.42 × 1,923.72
  4. Step 4: Simplify right side
    7,117.92x = 20,540,366.40
  5. Step 5: Solve for x
    x = 20,540,366.40/7,117.92
  6. Step 6: Final answer
    x = 2,885.73

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Half scale
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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.