Home / 1,249.07-1,864.11-1,110.68

Finding the Fourth Proportional to 1,249.07, 1,864.11 and 1,110.68

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Solution

The fourth proportional to 1,249.07, 1,864.11 and 1,110.68 is: 1,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.07 : 1,864.11 = 1,110.68 : x
  2. Step 2: Convert to fraction form
    1,249.07/1,864.11 = 1,110.68/x
  3. Step 3: Cross multiply
    1,249.07x = 1,864.11 × 1,110.68
  4. Step 4: Simplify right side
    1,249.07x = 2,070,434.36
  5. Step 5: Solve for x
    x = 2,070,434.36/1,249.07
  6. Step 6: Final answer
    x = 1,657.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.