Home / 1,724.43-2,588.37-800.20

Finding the Fourth Proportional to 1,724.43, 2,588.37 and 800.20

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Solution

The fourth proportional to 1,724.43, 2,588.37 and 800.20 is: 1,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.43 : 2,588.37 = 800.20 : x
  2. Step 2: Convert to fraction form
    1,724.43/2,588.37 = 800.20/x
  3. Step 3: Cross multiply
    1,724.43x = 2,588.37 × 800.20
  4. Step 4: Simplify right side
    1,724.43x = 2,071,213.91
  5. Step 5: Solve for x
    x = 2,071,213.91/1,724.43
  6. Step 6: Final answer
    x = 1,201.10

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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.