Home / 3,535.78-4,877.17-2,278.50

Finding the Fourth Proportional to 3,535.78, 4,877.17 and 2,278.50

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Solution

The fourth proportional to 3,535.78, 4,877.17 and 2,278.50 is: 3,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.78 : 4,877.17 = 2,278.50 : x
  2. Step 2: Convert to fraction form
    3,535.78/4,877.17 = 2,278.50/x
  3. Step 3: Cross multiply
    3,535.78x = 4,877.17 × 2,278.50
  4. Step 4: Simplify right side
    3,535.78x = 11,112,631.85
  5. Step 5: Solve for x
    x = 11,112,631.85/3,535.78
  6. Step 6: Final answer
    x = 3,142.91

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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.