Home / 6,447.30-9,671.40-2,551.20

Finding the Fourth Proportional to 6,447.30, 9,671.40 and 2,551.20

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Solution

The fourth proportional to 6,447.30, 9,671.40 and 2,551.20 is: 3,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.30 : 9,671.40 = 2,551.20 : x
  2. Step 2: Convert to fraction form
    6,447.30/9,671.40 = 2,551.20/x
  3. Step 3: Cross multiply
    6,447.30x = 9,671.40 × 2,551.20
  4. Step 4: Simplify right side
    6,447.30x = 24,673,675.68
  5. Step 5: Solve for x
    x = 24,673,675.68/6,447.30
  6. Step 6: Final answer
    x = 3,826.98

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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.