Home / 2,302.78-3,177.84-1,308.06

Finding the Fourth Proportional to 2,302.78, 3,177.84 and 1,308.06

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Solution

The fourth proportional to 2,302.78, 3,177.84 and 1,308.06 is: 1,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.78 : 3,177.84 = 1,308.06 : x
  2. Step 2: Convert to fraction form
    2,302.78/3,177.84 = 1,308.06/x
  3. Step 3: Cross multiply
    2,302.78x = 3,177.84 × 1,308.06
  4. Step 4: Simplify right side
    2,302.78x = 4,156,805.39
  5. Step 5: Solve for x
    x = 4,156,805.39/2,302.78
  6. Step 6: Final answer
    x = 1,805.13

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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.