Home / 1,935.20-2,902.78-474.38

Finding the Fourth Proportional to 1,935.20, 2,902.78 and 474.38

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Solution

The fourth proportional to 1,935.20, 2,902.78 and 474.38 is: 711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.20 : 2,902.78 = 474.38 : x
  2. Step 2: Convert to fraction form
    1,935.20/2,902.78 = 474.38/x
  3. Step 3: Cross multiply
    1,935.20x = 2,902.78 × 474.38
  4. Step 4: Simplify right side
    1,935.20x = 1,377,020.78
  5. Step 5: Solve for x
    x = 1,377,020.78/1,935.20
  6. Step 6: Final answer
    x = 711.57

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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.