Home / 1,719.20-2,577.92-564.80

Finding the Fourth Proportional to 1,719.20, 2,577.92 and 564.80

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Solution

The fourth proportional to 1,719.20, 2,577.92 and 564.80 is: 846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.20 : 2,577.92 = 564.80 : x
  2. Step 2: Convert to fraction form
    1,719.20/2,577.92 = 564.80/x
  3. Step 3: Cross multiply
    1,719.20x = 2,577.92 × 564.80
  4. Step 4: Simplify right side
    1,719.20x = 1,456,009.22
  5. Step 5: Solve for x
    x = 1,456,009.22/1,719.20
  6. Step 6: Final answer
    x = 846.91

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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.