Home / 7,275.42-10,040.09-4,131.61

Finding the Fourth Proportional to 7,275.42, 10,040.09 and 4,131.61

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Solution

The fourth proportional to 7,275.42, 10,040.09 and 4,131.61 is: 5,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.42 : 10,040.09 = 4,131.61 : x
  2. Step 2: Convert to fraction form
    7,275.42/10,040.09 = 4,131.61/x
  3. Step 3: Cross multiply
    7,275.42x = 10,040.09 × 4,131.61
  4. Step 4: Simplify right side
    7,275.42x = 41,481,690.49
  5. Step 5: Solve for x
    x = 41,481,690.49/7,275.42
  6. Step 6: Final answer
    x = 5,701.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.