Home / 1,552.71-2,142.68-923.30

Finding the Fourth Proportional to 1,552.71, 2,142.68 and 923.30

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Solution

The fourth proportional to 1,552.71, 2,142.68 and 923.30 is: 1,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.71 : 2,142.68 = 923.30 : x
  2. Step 2: Convert to fraction form
    1,552.71/2,142.68 = 923.30/x
  3. Step 3: Cross multiply
    1,552.71x = 2,142.68 × 923.30
  4. Step 4: Simplify right side
    1,552.71x = 1,978,321.11
  5. Step 5: Solve for x
    x = 1,978,321.11/1,552.71
  6. Step 6: Final answer
    x = 1,274.11

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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.