Home / 1,474.15-2,211.60-549.76

Finding the Fourth Proportional to 1,474.15, 2,211.60 and 549.76

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Solution

The fourth proportional to 1,474.15, 2,211.60 and 549.76 is: 824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.15 : 2,211.60 = 549.76 : x
  2. Step 2: Convert to fraction form
    1,474.15/2,211.60 = 549.76/x
  3. Step 3: Cross multiply
    1,474.15x = 2,211.60 × 549.76
  4. Step 4: Simplify right side
    1,474.15x = 1,215,849.22
  5. Step 5: Solve for x
    x = 1,215,849.22/1,474.15
  6. Step 6: Final answer
    x = 824.78

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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.