Home / 4,154.12-6,231.72-1,521.21

Finding the Fourth Proportional to 4,154.12, 6,231.72 and 1,521.21

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Solution

The fourth proportional to 4,154.12, 6,231.72 and 1,521.21 is: 2,282.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.12 : 6,231.72 = 1,521.21 : x
  2. Step 2: Convert to fraction form
    4,154.12/6,231.72 = 1,521.21/x
  3. Step 3: Cross multiply
    4,154.12x = 6,231.72 × 1,521.21
  4. Step 4: Simplify right side
    4,154.12x = 9,479,754.78
  5. Step 5: Solve for x
    x = 9,479,754.78/4,154.12
  6. Step 6: Final answer
    x = 2,282.02

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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.