Home / 3,147.66-4,721.56-1,298.26

Finding the Fourth Proportional to 3,147.66, 4,721.56 and 1,298.26

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Solution

The fourth proportional to 3,147.66, 4,721.56 and 1,298.26 is: 1,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.66 : 4,721.56 = 1,298.26 : x
  2. Step 2: Convert to fraction form
    3,147.66/4,721.56 = 1,298.26/x
  3. Step 3: Cross multiply
    3,147.66x = 4,721.56 × 1,298.26
  4. Step 4: Simplify right side
    3,147.66x = 6,129,815.14
  5. Step 5: Solve for x
    x = 6,129,815.14/3,147.66
  6. Step 6: Final answer
    x = 1,947.42

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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.