Home / 3,134.28-4,701.26-1,284.78

Finding the Fourth Proportional to 3,134.28, 4,701.26 and 1,284.78

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Solution

The fourth proportional to 3,134.28, 4,701.26 and 1,284.78 is: 1,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.28 : 4,701.26 = 1,284.78 : x
  2. Step 2: Convert to fraction form
    3,134.28/4,701.26 = 1,284.78/x
  3. Step 3: Cross multiply
    3,134.28x = 4,701.26 × 1,284.78
  4. Step 4: Simplify right side
    3,134.28x = 6,040,084.82
  5. Step 5: Solve for x
    x = 6,040,084.82/3,134.28
  6. Step 6: Final answer
    x = 1,927.10

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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.