Home / 6,447.40-9,671.10-2,982.76

Finding the Fourth Proportional to 6,447.40, 9,671.10 and 2,982.76

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Solution

The fourth proportional to 6,447.40, 9,671.10 and 2,982.76 is: 4,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.40 : 9,671.10 = 2,982.76 : x
  2. Step 2: Convert to fraction form
    6,447.40/9,671.10 = 2,982.76/x
  3. Step 3: Cross multiply
    6,447.40x = 9,671.10 × 2,982.76
  4. Step 4: Simplify right side
    6,447.40x = 28,846,570.24
  5. Step 5: Solve for x
    x = 28,846,570.24/6,447.40
  6. Step 6: Final answer
    x = 4,474.14

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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.