Home / 3,411.28-5,116.86-1,359.28

Finding the Fourth Proportional to 3,411.28, 5,116.86 and 1,359.28

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Solution

The fourth proportional to 3,411.28, 5,116.86 and 1,359.28 is: 2,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.28 : 5,116.86 = 1,359.28 : x
  2. Step 2: Convert to fraction form
    3,411.28/5,116.86 = 1,359.28/x
  3. Step 3: Cross multiply
    3,411.28x = 5,116.86 × 1,359.28
  4. Step 4: Simplify right side
    3,411.28x = 6,955,245.46
  5. Step 5: Solve for x
    x = 6,955,245.46/3,411.28
  6. Step 6: Final answer
    x = 2,038.90

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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.