Home / 1,728.27-2,384.93-1,065.18

Finding the Fourth Proportional to 1,728.27, 2,384.93 and 1,065.18

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Solution

The fourth proportional to 1,728.27, 2,384.93 and 1,065.18 is: 1,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.27 : 2,384.93 = 1,065.18 : x
  2. Step 2: Convert to fraction form
    1,728.27/2,384.93 = 1,065.18/x
  3. Step 3: Cross multiply
    1,728.27x = 2,384.93 × 1,065.18
  4. Step 4: Simplify right side
    1,728.27x = 2,540,374.41
  5. Step 5: Solve for x
    x = 2,540,374.41/1,728.27
  6. Step 6: Final answer
    x = 1,469.90

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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.