Home / 6,499.38-9,749.67-2,115.66

Finding the Fourth Proportional to 6,499.38, 9,749.67 and 2,115.66

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Solution

The fourth proportional to 6,499.38, 9,749.67 and 2,115.66 is: 3,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499.38 : 9,749.67 = 2,115.66 : x
  2. Step 2: Convert to fraction form
    6,499.38/9,749.67 = 2,115.66/x
  3. Step 3: Cross multiply
    6,499.38x = 9,749.67 × 2,115.66
  4. Step 4: Simplify right side
    6,499.38x = 20,626,986.83
  5. Step 5: Solve for x
    x = 20,626,986.83/6,499.38
  6. Step 6: Final answer
    x = 3,173.69

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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.