Home / 2,686.90-3,707.94-1,508.08

Finding the Fourth Proportional to 2,686.90, 3,707.94 and 1,508.08

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Solution

The fourth proportional to 2,686.90, 3,707.94 and 1,508.08 is: 2,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.90 : 3,707.94 = 1,508.08 : x
  2. Step 2: Convert to fraction form
    2,686.90/3,707.94 = 1,508.08/x
  3. Step 3: Cross multiply
    2,686.90x = 3,707.94 × 1,508.08
  4. Step 4: Simplify right side
    2,686.90x = 5,591,870.16
  5. Step 5: Solve for x
    x = 5,591,870.16/2,686.90
  6. Step 6: Final answer
    x = 2,081.16

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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.