Home / 1,801.19-2,701.26-761.42

Finding the Fourth Proportional to 1,801.19, 2,701.26 and 761.42

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Solution

The fourth proportional to 1,801.19, 2,701.26 and 761.42 is: 1,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.19 : 2,701.26 = 761.42 : x
  2. Step 2: Convert to fraction form
    1,801.19/2,701.26 = 761.42/x
  3. Step 3: Cross multiply
    1,801.19x = 2,701.26 × 761.42
  4. Step 4: Simplify right side
    1,801.19x = 2,056,789.58
  5. Step 5: Solve for x
    x = 2,056,789.58/1,801.19
  6. Step 6: Final answer
    x = 1,141.91

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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.