Home / 2,671.28-4,007.34-1,284.36

Finding the Fourth Proportional to 2,671.28, 4,007.34 and 1,284.36

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Solution

The fourth proportional to 2,671.28, 4,007.34 and 1,284.36 is: 1,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.28 : 4,007.34 = 1,284.36 : x
  2. Step 2: Convert to fraction form
    2,671.28/4,007.34 = 1,284.36/x
  3. Step 3: Cross multiply
    2,671.28x = 4,007.34 × 1,284.36
  4. Step 4: Simplify right side
    2,671.28x = 5,146,867.20
  5. Step 5: Solve for x
    x = 5,146,867.20/2,671.28
  6. Step 6: Final answer
    x = 1,926.74

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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.