Home / 2,474.40-3,708.80-1,242.72

Finding the Fourth Proportional to 2,474.40, 3,708.80 and 1,242.72

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Solution

The fourth proportional to 2,474.40, 3,708.80 and 1,242.72 is: 1,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.40 : 3,708.80 = 1,242.72 : x
  2. Step 2: Convert to fraction form
    2,474.40/3,708.80 = 1,242.72/x
  3. Step 3: Cross multiply
    2,474.40x = 3,708.80 × 1,242.72
  4. Step 4: Simplify right side
    2,474.40x = 4,608,999.94
  5. Step 5: Solve for x
    x = 4,608,999.94/2,474.40
  6. Step 6: Final answer
    x = 1,862.67

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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.