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Finding the Fourth Proportional to 2,929.76, 4,395.23 and 1,080.88

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Solution

The fourth proportional to 2,929.76, 4,395.23 and 1,080.88 is: 1,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.76 : 4,395.23 = 1,080.88 : x
  2. Step 2: Convert to fraction form
    2,929.76/4,395.23 = 1,080.88/x
  3. Step 3: Cross multiply
    2,929.76x = 4,395.23 × 1,080.88
  4. Step 4: Simplify right side
    2,929.76x = 4,750,716.29
  5. Step 5: Solve for x
    x = 4,750,716.29/2,929.76
  6. Step 6: Final answer
    x = 1,621.54

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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.