Home / 1,932.11-2,666.31-1,047.90

Finding the Fourth Proportional to 1,932.11, 2,666.31 and 1,047.90

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Solution

The fourth proportional to 1,932.11, 2,666.31 and 1,047.90 is: 1,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.11 : 2,666.31 = 1,047.90 : x
  2. Step 2: Convert to fraction form
    1,932.11/2,666.31 = 1,047.90/x
  3. Step 3: Cross multiply
    1,932.11x = 2,666.31 × 1,047.90
  4. Step 4: Simplify right side
    1,932.11x = 2,794,026.25
  5. Step 5: Solve for x
    x = 2,794,026.25/1,932.11
  6. Step 6: Final answer
    x = 1,446.10

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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.