Home / 1,249.26-1,881.35-1,088.88

Finding the Fourth Proportional to 1,249.26, 1,881.35 and 1,088.88

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Solution

The fourth proportional to 1,249.26, 1,881.35 and 1,088.88 is: 1,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.26 : 1,881.35 = 1,088.88 : x
  2. Step 2: Convert to fraction form
    1,249.26/1,881.35 = 1,088.88/x
  3. Step 3: Cross multiply
    1,249.26x = 1,881.35 × 1,088.88
  4. Step 4: Simplify right side
    1,249.26x = 2,048,558.94
  5. Step 5: Solve for x
    x = 2,048,558.94/1,249.26
  6. Step 6: Final answer
    x = 1,639.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.