Home / 1,719.52-2,579.46-486.92

Finding the Fourth Proportional to 1,719.52, 2,579.46 and 486.92

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Solution

The fourth proportional to 1,719.52, 2,579.46 and 486.92 is: 730.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.52 : 2,579.46 = 486.92 : x
  2. Step 2: Convert to fraction form
    1,719.52/2,579.46 = 486.92/x
  3. Step 3: Cross multiply
    1,719.52x = 2,579.46 × 486.92
  4. Step 4: Simplify right side
    1,719.52x = 1,255,990.66
  5. Step 5: Solve for x
    x = 1,255,990.66/1,719.52
  6. Step 6: Final answer
    x = 730.43

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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.