Home / 3,117.30-4,675.68-1,268.61

Finding the Fourth Proportional to 3,117.30, 4,675.68 and 1,268.61

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Solution

The fourth proportional to 3,117.30, 4,675.68 and 1,268.61 is: 1,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.30 : 4,675.68 = 1,268.61 : x
  2. Step 2: Convert to fraction form
    3,117.30/4,675.68 = 1,268.61/x
  3. Step 3: Cross multiply
    3,117.30x = 4,675.68 × 1,268.61
  4. Step 4: Simplify right side
    3,117.30x = 5,931,614.40
  5. Step 5: Solve for x
    x = 5,931,614.40/3,117.30
  6. Step 6: Final answer
    x = 1,902.81

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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.