Home / 7,129.26-10,690.82-2,449.74

Finding the Fourth Proportional to 7,129.26, 10,690.82 and 2,449.74

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Solution

The fourth proportional to 7,129.26, 10,690.82 and 2,449.74 is: 3,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.26 : 10,690.82 = 2,449.74 : x
  2. Step 2: Convert to fraction form
    7,129.26/10,690.82 = 2,449.74/x
  3. Step 3: Cross multiply
    7,129.26x = 10,690.82 × 2,449.74
  4. Step 4: Simplify right side
    7,129.26x = 26,189,720.06
  5. Step 5: Solve for x
    x = 26,189,720.06/7,129.26
  6. Step 6: Final answer
    x = 3,673.55

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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.