Home / 2,938.38-4,045.08-2,275.02

Finding the Fourth Proportional to 2,938.38, 4,045.08 and 2,275.02

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Solution

The fourth proportional to 2,938.38, 4,045.08 and 2,275.02 is: 3,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.38 : 4,045.08 = 2,275.02 : x
  2. Step 2: Convert to fraction form
    2,938.38/4,045.08 = 2,275.02/x
  3. Step 3: Cross multiply
    2,938.38x = 4,045.08 × 2,275.02
  4. Step 4: Simplify right side
    2,938.38x = 9,202,637.90
  5. Step 5: Solve for x
    x = 9,202,637.90/2,938.38
  6. Step 6: Final answer
    x = 3,131.87

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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.