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Finding the Fourth Proportional to 1,951.90, 2,924.51 and 1,326.17

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Solution

The fourth proportional to 1,951.90, 2,924.51 and 1,326.17 is: 1,986.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.90 : 2,924.51 = 1,326.17 : x
  2. Step 2: Convert to fraction form
    1,951.90/2,924.51 = 1,326.17/x
  3. Step 3: Cross multiply
    1,951.90x = 2,924.51 × 1,326.17
  4. Step 4: Simplify right side
    1,951.90x = 3,878,398.11
  5. Step 5: Solve for x
    x = 3,878,398.11/1,951.90
  6. Step 6: Final answer
    x = 1,986.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.