Home / 3,191.28-4,403.52-2,012.76

Finding the Fourth Proportional to 3,191.28, 4,403.52 and 2,012.76

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Solution

The fourth proportional to 3,191.28, 4,403.52 and 2,012.76 is: 2,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.28 : 4,403.52 = 2,012.76 : x
  2. Step 2: Convert to fraction form
    3,191.28/4,403.52 = 2,012.76/x
  3. Step 3: Cross multiply
    3,191.28x = 4,403.52 × 2,012.76
  4. Step 4: Simplify right side
    3,191.28x = 8,863,228.92
  5. Step 5: Solve for x
    x = 8,863,228.92/3,191.28
  6. Step 6: Final answer
    x = 2,777.33

Related Problems

Find fourth proportional to 1,595.64, 2,201.76 and 1,006.38
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.