Home / 2,708.90-3,738.05-1,529.86

Finding the Fourth Proportional to 2,708.90, 3,738.05 and 1,529.86

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Solution

The fourth proportional to 2,708.90, 3,738.05 and 1,529.86 is: 2,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.90 : 3,738.05 = 1,529.86 : x
  2. Step 2: Convert to fraction form
    2,708.90/3,738.05 = 1,529.86/x
  3. Step 3: Cross multiply
    2,708.90x = 3,738.05 × 1,529.86
  4. Step 4: Simplify right side
    2,708.90x = 5,718,693.17
  5. Step 5: Solve for x
    x = 5,718,693.17/2,708.90
  6. Step 6: Final answer
    x = 2,111.08

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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.