Home / 6,499.09-9,749.65-2,115.52

Finding the Fourth Proportional to 6,499.09, 9,749.65 and 2,115.52

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Solution

The fourth proportional to 6,499.09, 9,749.65 and 2,115.52 is: 3,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499.09 : 9,749.65 = 2,115.52 : x
  2. Step 2: Convert to fraction form
    6,499.09/9,749.65 = 2,115.52/x
  3. Step 3: Cross multiply
    6,499.09x = 9,749.65 × 2,115.52
  4. Step 4: Simplify right side
    6,499.09x = 20,625,579.57
  5. Step 5: Solve for x
    x = 20,625,579.57/6,499.09
  6. Step 6: Final answer
    x = 3,173.61

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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.