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Finding the Fourth Proportional to 6,449.70, 9,675.45 and 2,751.90

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Solution

The fourth proportional to 6,449.70, 9,675.45 and 2,751.90 is: 4,128.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.70 : 9,675.45 = 2,751.90 : x
  2. Step 2: Convert to fraction form
    6,449.70/9,675.45 = 2,751.90/x
  3. Step 3: Cross multiply
    6,449.70x = 9,675.45 × 2,751.90
  4. Step 4: Simplify right side
    6,449.70x = 26,625,870.86
  5. Step 5: Solve for x
    x = 26,625,870.86/6,449.70
  6. Step 6: Final answer
    x = 4,128.23

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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.