Home / 2,077.31-2,866.19-1,192.79

Finding the Fourth Proportional to 2,077.31, 2,866.19 and 1,192.79

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Solution

The fourth proportional to 2,077.31, 2,866.19 and 1,192.79 is: 1,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.31 : 2,866.19 = 1,192.79 : x
  2. Step 2: Convert to fraction form
    2,077.31/2,866.19 = 1,192.79/x
  3. Step 3: Cross multiply
    2,077.31x = 2,866.19 × 1,192.79
  4. Step 4: Simplify right side
    2,077.31x = 3,418,763.97
  5. Step 5: Solve for x
    x = 3,418,763.97/2,077.31
  6. Step 6: Final answer
    x = 1,645.76

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1.5x scale

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.