Home / 1,474.38-2,211.45-549.90

Finding the Fourth Proportional to 1,474.38, 2,211.45 and 549.90

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Solution

The fourth proportional to 1,474.38, 2,211.45 and 549.90 is: 824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.38 : 2,211.45 = 549.90 : x
  2. Step 2: Convert to fraction form
    1,474.38/2,211.45 = 549.90/x
  3. Step 3: Cross multiply
    1,474.38x = 2,211.45 × 549.90
  4. Step 4: Simplify right side
    1,474.38x = 1,216,076.36
  5. Step 5: Solve for x
    x = 1,216,076.36/1,474.38
  6. Step 6: Final answer
    x = 824.81

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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.