Home / 6,439.20-9,647.04-2,974.56

Finding the Fourth Proportional to 6,439.20, 9,647.04 and 2,974.56

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Solution

The fourth proportional to 6,439.20, 9,647.04 and 2,974.56 is: 4,456.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.20 : 9,647.04 = 2,974.56 : x
  2. Step 2: Convert to fraction form
    6,439.20/9,647.04 = 2,974.56/x
  3. Step 3: Cross multiply
    6,439.20x = 9,647.04 × 2,974.56
  4. Step 4: Simplify right side
    6,439.20x = 28,695,699.30
  5. Step 5: Solve for x
    x = 28,695,699.30/6,439.20
  6. Step 6: Final answer
    x = 4,456.41

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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.