Home / 1,893.20-2,612.61-1,065.20

Finding the Fourth Proportional to 1,893.20, 2,612.61 and 1,065.20

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Solution

The fourth proportional to 1,893.20, 2,612.61 and 1,065.20 is: 1,469.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.20 : 2,612.61 = 1,065.20 : x
  2. Step 2: Convert to fraction form
    1,893.20/2,612.61 = 1,065.20/x
  3. Step 3: Cross multiply
    1,893.20x = 2,612.61 × 1,065.20
  4. Step 4: Simplify right side
    1,893.20x = 2,782,939.11
  5. Step 5: Solve for x
    x = 2,782,939.11/1,893.20
  6. Step 6: Final answer
    x = 1,469.97

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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.