Home / 1,439.56-2,161.50-1,167.40

Finding the Fourth Proportional to 1,439.56, 2,161.50 and 1,167.40

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Solution

The fourth proportional to 1,439.56, 2,161.50 and 1,167.40 is: 1,752.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.56 : 2,161.50 = 1,167.40 : x
  2. Step 2: Convert to fraction form
    1,439.56/2,161.50 = 1,167.40/x
  3. Step 3: Cross multiply
    1,439.56x = 2,161.50 × 1,167.40
  4. Step 4: Simplify right side
    1,439.56x = 2,523,335.10
  5. Step 5: Solve for x
    x = 2,523,335.10/1,439.56
  6. Step 6: Final answer
    x = 1,752.85

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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.