Home / 1,929.24-2,889.20-1,105.02

Finding the Fourth Proportional to 1,929.24, 2,889.20 and 1,105.02

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Solution

The fourth proportional to 1,929.24, 2,889.20 and 1,105.02 is: 1,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.24 : 2,889.20 = 1,105.02 : x
  2. Step 2: Convert to fraction form
    1,929.24/2,889.20 = 1,105.02/x
  3. Step 3: Cross multiply
    1,929.24x = 2,889.20 × 1,105.02
  4. Step 4: Simplify right side
    1,929.24x = 3,192,618.26
  5. Step 5: Solve for x
    x = 3,192,618.26/1,929.24
  6. Step 6: Final answer
    x = 1,654.86

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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.