Home / 2,291.29-3,163.56-1,693.91

Finding the Fourth Proportional to 2,291.29, 3,163.56 and 1,693.91

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Solution

The fourth proportional to 2,291.29, 3,163.56 and 1,693.91 is: 2,338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.29 : 3,163.56 = 1,693.91 : x
  2. Step 2: Convert to fraction form
    2,291.29/3,163.56 = 1,693.91/x
  3. Step 3: Cross multiply
    2,291.29x = 3,163.56 × 1,693.91
  4. Step 4: Simplify right side
    2,291.29x = 5,358,787.48
  5. Step 5: Solve for x
    x = 5,358,787.48/2,291.29
  6. Step 6: Final answer
    x = 2,338.77

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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.