Home / 2,708.60-3,738.08-1,529.80

Finding the Fourth Proportional to 2,708.60, 3,738.08 and 1,529.80

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Solution

The fourth proportional to 2,708.60, 3,738.08 and 1,529.80 is: 2,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.60 : 3,738.08 = 1,529.80 : x
  2. Step 2: Convert to fraction form
    2,708.60/3,738.08 = 1,529.80/x
  3. Step 3: Cross multiply
    2,708.60x = 3,738.08 × 1,529.80
  4. Step 4: Simplify right side
    2,708.60x = 5,718,514.78
  5. Step 5: Solve for x
    x = 5,718,514.78/2,708.60
  6. Step 6: Final answer
    x = 2,111.24

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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.