Home / 7,521.42-11,275.65-3,628.56

Finding the Fourth Proportional to 7,521.42, 11,275.65 and 3,628.56

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Solution

The fourth proportional to 7,521.42, 11,275.65 and 3,628.56 is: 5,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.42 : 11,275.65 = 3,628.56 : x
  2. Step 2: Convert to fraction form
    7,521.42/11,275.65 = 3,628.56/x
  3. Step 3: Cross multiply
    7,521.42x = 11,275.65 × 3,628.56
  4. Step 4: Simplify right side
    7,521.42x = 40,914,372.56
  5. Step 5: Solve for x
    x = 40,914,372.56/7,521.42
  6. Step 6: Final answer
    x = 5,439.71

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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.