Home / 1,948.43-2,691.68-1,685.99

Finding the Fourth Proportional to 1,948.43, 2,691.68 and 1,685.99

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Solution

The fourth proportional to 1,948.43, 2,691.68 and 1,685.99 is: 2,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.43 : 2,691.68 = 1,685.99 : x
  2. Step 2: Convert to fraction form
    1,948.43/2,691.68 = 1,685.99/x
  3. Step 3: Cross multiply
    1,948.43x = 2,691.68 × 1,685.99
  4. Step 4: Simplify right side
    1,948.43x = 4,538,128.72
  5. Step 5: Solve for x
    x = 4,538,128.72/1,948.43
  6. Step 6: Final answer
    x = 2,329.12

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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.