Home / 1,474.18-2,033.52-921.22

Finding the Fourth Proportional to 1,474.18, 2,033.52 and 921.22

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Solution

The fourth proportional to 1,474.18, 2,033.52 and 921.22 is: 1,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.18 : 2,033.52 = 921.22 : x
  2. Step 2: Convert to fraction form
    1,474.18/2,033.52 = 921.22/x
  3. Step 3: Cross multiply
    1,474.18x = 2,033.52 × 921.22
  4. Step 4: Simplify right side
    1,474.18x = 1,873,318.48
  5. Step 5: Solve for x
    x = 1,873,318.48/1,474.18
  6. Step 6: Final answer
    x = 1,270.75

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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.