Home / 3,191.40-4,403.18-1,932.92

Finding the Fourth Proportional to 3,191.40, 4,403.18 and 1,932.92

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Solution

The fourth proportional to 3,191.40, 4,403.18 and 1,932.92 is: 2,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.40 : 4,403.18 = 1,932.92 : x
  2. Step 2: Convert to fraction form
    3,191.40/4,403.18 = 1,932.92/x
  3. Step 3: Cross multiply
    3,191.40x = 4,403.18 × 1,932.92
  4. Step 4: Simplify right side
    3,191.40x = 8,510,994.69
  5. Step 5: Solve for x
    x = 8,510,994.69/3,191.40
  6. Step 6: Final answer
    x = 2,666.85

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.