Home / 1,948.43-2,689.74-1,151.51

Finding the Fourth Proportional to 1,948.43, 2,689.74 and 1,151.51

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Solution

The fourth proportional to 1,948.43, 2,689.74 and 1,151.51 is: 1,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.43 : 2,689.74 = 1,151.51 : x
  2. Step 2: Convert to fraction form
    1,948.43/2,689.74 = 1,151.51/x
  3. Step 3: Cross multiply
    1,948.43x = 2,689.74 × 1,151.51
  4. Step 4: Simplify right side
    1,948.43x = 3,097,249.06
  5. Step 5: Solve for x
    x = 3,097,249.06/1,948.43
  6. Step 6: Final answer
    x = 1,589.61

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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.