Home / 2,995.20-4,491.45-1,145.70

Finding the Fourth Proportional to 2,995.20, 4,491.45 and 1,145.70

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Solution

The fourth proportional to 2,995.20, 4,491.45 and 1,145.70 is: 1,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.20 : 4,491.45 = 1,145.70 : x
  2. Step 2: Convert to fraction form
    2,995.20/4,491.45 = 1,145.70/x
  3. Step 3: Cross multiply
    2,995.20x = 4,491.45 × 1,145.70
  4. Step 4: Simplify right side
    2,995.20x = 5,145,854.27
  5. Step 5: Solve for x
    x = 5,145,854.27/2,995.20
  6. Step 6: Final answer
    x = 1,718.03

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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.