Home / 6,475.40-9,722.10-4,149.80

Finding the Fourth Proportional to 6,475.40, 9,722.10 and 4,149.80

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Solution

The fourth proportional to 6,475.40, 9,722.10 and 4,149.80 is: 6,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.40 : 9,722.10 = 4,149.80 : x
  2. Step 2: Convert to fraction form
    6,475.40/9,722.10 = 4,149.80/x
  3. Step 3: Cross multiply
    6,475.40x = 9,722.10 × 4,149.80
  4. Step 4: Simplify right side
    6,475.40x = 40,344,770.58
  5. Step 5: Solve for x
    x = 40,344,770.58/6,475.40
  6. Step 6: Final answer
    x = 6,230.47

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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.