Home / 1,728.44-2,384.34-1,169.10

Finding the Fourth Proportional to 1,728.44, 2,384.34 and 1,169.10

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Solution

The fourth proportional to 1,728.44, 2,384.34 and 1,169.10 is: 1,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.44 : 2,384.34 = 1,169.10 : x
  2. Step 2: Convert to fraction form
    1,728.44/2,384.34 = 1,169.10/x
  3. Step 3: Cross multiply
    1,728.44x = 2,384.34 × 1,169.10
  4. Step 4: Simplify right side
    1,728.44x = 2,787,520.80
  5. Step 5: Solve for x
    x = 2,787,520.80/1,728.44
  6. Step 6: Final answer
    x = 1,612.74

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1.5x scale

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.