Home / 3,708.24-5,117.40-2,311

Finding the Fourth Proportional to 3,708.24, 5,117.40 and 2,311

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Solution

The fourth proportional to 3,708.24, 5,117.40 and 2,311 is: 3,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.24 : 5,117.40 = 2,311 : x
  2. Step 2: Convert to fraction form
    3,708.24/5,117.40 = 2,311/x
  3. Step 3: Cross multiply
    3,708.24x = 5,117.40 × 2,311
  4. Step 4: Simplify right side
    3,708.24x = 11,826,311.40
  5. Step 5: Solve for x
    x = 11,826,311.40/3,708.24
  6. Step 6: Final answer
    x = 3,189.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.