Home / 2,237.92-3,356.90-921.36

Finding the Fourth Proportional to 2,237.92, 3,356.90 and 921.36

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Solution

The fourth proportional to 2,237.92, 3,356.90 and 921.36 is: 1,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.92 : 3,356.90 = 921.36 : x
  2. Step 2: Convert to fraction form
    2,237.92/3,356.90 = 921.36/x
  3. Step 3: Cross multiply
    2,237.92x = 3,356.90 × 921.36
  4. Step 4: Simplify right side
    2,237.92x = 3,092,913.38
  5. Step 5: Solve for x
    x = 3,092,913.38/2,237.92
  6. Step 6: Final answer
    x = 1,382.05

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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.