Home / 1,439.17-2,161.49-895.15

Finding the Fourth Proportional to 1,439.17, 2,161.49 and 895.15

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Solution

The fourth proportional to 1,439.17, 2,161.49 and 895.15 is: 1,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.17 : 2,161.49 = 895.15 : x
  2. Step 2: Convert to fraction form
    1,439.17/2,161.49 = 895.15/x
  3. Step 3: Cross multiply
    1,439.17x = 2,161.49 × 895.15
  4. Step 4: Simplify right side
    1,439.17x = 1,934,856.00
  5. Step 5: Solve for x
    x = 1,934,856.00/1,439.17
  6. Step 6: Final answer
    x = 1,344.43

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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.