Home / 1,929.45-2,887.00-1,149.88

Finding the Fourth Proportional to 1,929.45, 2,887.00 and 1,149.88

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Solution

The fourth proportional to 1,929.45, 2,887.00 and 1,149.88 is: 1,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.45 : 2,887.00 = 1,149.88 : x
  2. Step 2: Convert to fraction form
    1,929.45/2,887.00 = 1,149.88/x
  3. Step 3: Cross multiply
    1,929.45x = 2,887.00 × 1,149.88
  4. Step 4: Simplify right side
    1,929.45x = 3,319,698.88
  5. Step 5: Solve for x
    x = 3,319,698.88/1,929.45
  6. Step 6: Final answer
    x = 1,720.54

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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.