Home / 2,687.36-3,708.54-1,508.45

Finding the Fourth Proportional to 2,687.36, 3,708.54 and 1,508.45

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Solution

The fourth proportional to 2,687.36, 3,708.54 and 1,508.45 is: 2,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.36 : 3,708.54 = 1,508.45 : x
  2. Step 2: Convert to fraction form
    2,687.36/3,708.54 = 1,508.45/x
  3. Step 3: Cross multiply
    2,687.36x = 3,708.54 × 1,508.45
  4. Step 4: Simplify right side
    2,687.36x = 5,594,128.62
  5. Step 5: Solve for x
    x = 5,594,128.62/2,687.36
  6. Step 6: Final answer
    x = 2,081.65

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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.