Home / 1,789.90-2,469.02-1,126.24

Finding the Fourth Proportional to 1,789.90, 2,469.02 and 1,126.24

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Solution

The fourth proportional to 1,789.90, 2,469.02 and 1,126.24 is: 1,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.90 : 2,469.02 = 1,126.24 : x
  2. Step 2: Convert to fraction form
    1,789.90/2,469.02 = 1,126.24/x
  3. Step 3: Cross multiply
    1,789.90x = 2,469.02 × 1,126.24
  4. Step 4: Simplify right side
    1,789.90x = 2,780,697.28
  5. Step 5: Solve for x
    x = 2,780,697.28/1,789.90
  6. Step 6: Final answer
    x = 1,553.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.