Home / 1,908.31-2,862.19-934.15

Finding the Fourth Proportional to 1,908.31, 2,862.19 and 934.15

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Solution

The fourth proportional to 1,908.31, 2,862.19 and 934.15 is: 1,401.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.31 : 2,862.19 = 934.15 : x
  2. Step 2: Convert to fraction form
    1,908.31/2,862.19 = 934.15/x
  3. Step 3: Cross multiply
    1,908.31x = 2,862.19 × 934.15
  4. Step 4: Simplify right side
    1,908.31x = 2,673,714.79
  5. Step 5: Solve for x
    x = 2,673,714.79/1,908.31
  6. Step 6: Final answer
    x = 1,401.09

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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.