Home / 1,728.67-2,385.61-1,065.96

Finding the Fourth Proportional to 1,728.67, 2,385.61 and 1,065.96

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Solution

The fourth proportional to 1,728.67, 2,385.61 and 1,065.96 is: 1,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.67 : 2,385.61 = 1,065.96 : x
  2. Step 2: Convert to fraction form
    1,728.67/2,385.61 = 1,065.96/x
  3. Step 3: Cross multiply
    1,728.67x = 2,385.61 × 1,065.96
  4. Step 4: Simplify right side
    1,728.67x = 2,542,964.84
  5. Step 5: Solve for x
    x = 2,542,964.84/1,728.67
  6. Step 6: Final answer
    x = 1,471.05

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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.