Home / 2,686.95-3,708.36-1,508.09

Finding the Fourth Proportional to 2,686.95, 3,708.36 and 1,508.09

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Solution

The fourth proportional to 2,686.95, 3,708.36 and 1,508.09 is: 2,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.95 : 3,708.36 = 1,508.09 : x
  2. Step 2: Convert to fraction form
    2,686.95/3,708.36 = 1,508.09/x
  3. Step 3: Cross multiply
    2,686.95x = 3,708.36 × 1,508.09
  4. Step 4: Simplify right side
    2,686.95x = 5,592,540.63
  5. Step 5: Solve for x
    x = 5,592,540.63/2,686.95
  6. Step 6: Final answer
    x = 2,081.37

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1.5x scale

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.