Home / 3,708.85-5,561.28-1,242.85

Finding the Fourth Proportional to 3,708.85, 5,561.28 and 1,242.85

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Solution

The fourth proportional to 3,708.85, 5,561.28 and 1,242.85 is: 1,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.85 : 5,561.28 = 1,242.85 : x
  2. Step 2: Convert to fraction form
    3,708.85/5,561.28 = 1,242.85/x
  3. Step 3: Cross multiply
    3,708.85x = 5,561.28 × 1,242.85
  4. Step 4: Simplify right side
    3,708.85x = 6,911,836.85
  5. Step 5: Solve for x
    x = 6,911,836.85/3,708.85
  6. Step 6: Final answer
    x = 1,863.61

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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.