Home / 7,144.96-10,718.80-2,531.20

Finding the Fourth Proportional to 7,144.96, 10,718.80 and 2,531.20

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Solution

The fourth proportional to 7,144.96, 10,718.80 and 2,531.20 is: 3,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.96 : 10,718.80 = 2,531.20 : x
  2. Step 2: Convert to fraction form
    7,144.96/10,718.80 = 2,531.20/x
  3. Step 3: Cross multiply
    7,144.96x = 10,718.80 × 2,531.20
  4. Step 4: Simplify right side
    7,144.96x = 27,131,426.56
  5. Step 5: Solve for x
    x = 27,131,426.56/7,144.96
  6. Step 6: Final answer
    x = 3,797.28

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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.