Home / 1,728.66-2,385.45-1,065.27

Finding the Fourth Proportional to 1,728.66, 2,385.45 and 1,065.27

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Solution

The fourth proportional to 1,728.66, 2,385.45 and 1,065.27 is: 1,470.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.66 : 2,385.45 = 1,065.27 : x
  2. Step 2: Convert to fraction form
    1,728.66/2,385.45 = 1,065.27/x
  3. Step 3: Cross multiply
    1,728.66x = 2,385.45 × 1,065.27
  4. Step 4: Simplify right side
    1,728.66x = 2,541,148.32
  5. Step 5: Solve for x
    x = 2,541,148.32/1,728.66
  6. Step 6: Final answer
    x = 1,470.01

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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.