Home / 2,752.23-4,128.48-1,108.55

Finding the Fourth Proportional to 2,752.23, 4,128.48 and 1,108.55

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Solution

The fourth proportional to 2,752.23, 4,128.48 and 1,108.55 is: 1,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.23 : 4,128.48 = 1,108.55 : x
  2. Step 2: Convert to fraction form
    2,752.23/4,128.48 = 1,108.55/x
  3. Step 3: Cross multiply
    2,752.23x = 4,128.48 × 1,108.55
  4. Step 4: Simplify right side
    2,752.23x = 4,576,632.67
  5. Step 5: Solve for x
    x = 4,576,632.67/2,752.23
  6. Step 6: Final answer
    x = 1,662.88

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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.