Home / 1,949.19-2,689.89-1,110.06

Finding the Fourth Proportional to 1,949.19, 2,689.89 and 1,110.06

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Solution

The fourth proportional to 1,949.19, 2,689.89 and 1,110.06 is: 1,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.19 : 2,689.89 = 1,110.06 : x
  2. Step 2: Convert to fraction form
    1,949.19/2,689.89 = 1,110.06/x
  3. Step 3: Cross multiply
    1,949.19x = 2,689.89 × 1,110.06
  4. Step 4: Simplify right side
    1,949.19x = 2,985,939.29
  5. Step 5: Solve for x
    x = 2,985,939.29/1,949.19
  6. Step 6: Final answer
    x = 1,531.89

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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.