Home / 2,686.79-3,708.09-1,508.04

Finding the Fourth Proportional to 2,686.79, 3,708.09 and 1,508.04

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Solution

The fourth proportional to 2,686.79, 3,708.09 and 1,508.04 is: 2,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.79 : 3,708.09 = 1,508.04 : x
  2. Step 2: Convert to fraction form
    2,686.79/3,708.09 = 1,508.04/x
  3. Step 3: Cross multiply
    2,686.79x = 3,708.09 × 1,508.04
  4. Step 4: Simplify right side
    2,686.79x = 5,591,948.04
  5. Step 5: Solve for x
    x = 5,591,948.04/2,686.79
  6. Step 6: Final answer
    x = 2,081.27

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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.