Home / 2,255.34-3,381.28-1,068.78

Finding the Fourth Proportional to 2,255.34, 3,381.28 and 1,068.78

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Solution

The fourth proportional to 2,255.34, 3,381.28 and 1,068.78 is: 1,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.34 : 3,381.28 = 1,068.78 : x
  2. Step 2: Convert to fraction form
    2,255.34/3,381.28 = 1,068.78/x
  3. Step 3: Cross multiply
    2,255.34x = 3,381.28 × 1,068.78
  4. Step 4: Simplify right side
    2,255.34x = 3,613,844.44
  5. Step 5: Solve for x
    x = 3,613,844.44/2,255.34
  6. Step 6: Final answer
    x = 1,602.35

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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.