Home / 1,948.68-2,923.18-614.78

Finding the Fourth Proportional to 1,948.68, 2,923.18 and 614.78

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Solution

The fourth proportional to 1,948.68, 2,923.18 and 614.78 is: 922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.68 : 2,923.18 = 614.78 : x
  2. Step 2: Convert to fraction form
    1,948.68/2,923.18 = 614.78/x
  3. Step 3: Cross multiply
    1,948.68x = 2,923.18 × 614.78
  4. Step 4: Simplify right side
    1,948.68x = 1,797,112.60
  5. Step 5: Solve for x
    x = 1,797,112.60/1,948.68
  6. Step 6: Final answer
    x = 922.22

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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.