Home / 1,521.96-2,281.57-547.38

Finding the Fourth Proportional to 1,521.96, 2,281.57 and 547.38

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Solution

The fourth proportional to 1,521.96, 2,281.57 and 547.38 is: 820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.96 : 2,281.57 = 547.38 : x
  2. Step 2: Convert to fraction form
    1,521.96/2,281.57 = 547.38/x
  3. Step 3: Cross multiply
    1,521.96x = 2,281.57 × 547.38
  4. Step 4: Simplify right side
    1,521.96x = 1,248,873.01
  5. Step 5: Solve for x
    x = 1,248,873.01/1,521.96
  6. Step 6: Final answer
    x = 820.57

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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.