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Finding the Fourth Proportional to 1,363.91, 2,046.90 and 999.65

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Solution

The fourth proportional to 1,363.91, 2,046.90 and 999.65 is: 1,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.91 : 2,046.90 = 999.65 : x
  2. Step 2: Convert to fraction form
    1,363.91/2,046.90 = 999.65/x
  3. Step 3: Cross multiply
    1,363.91x = 2,046.90 × 999.65
  4. Step 4: Simplify right side
    1,363.91x = 2,046,183.59
  5. Step 5: Solve for x
    x = 2,046,183.59/1,363.91
  6. Step 6: Final answer
    x = 1,500.23

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1.5x scale

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.