Home / 3,299.30-4,949.40-1,108.65

Finding the Fourth Proportional to 3,299.30, 4,949.40 and 1,108.65

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Solution

The fourth proportional to 3,299.30, 4,949.40 and 1,108.65 is: 1,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.30 : 4,949.40 = 1,108.65 : x
  2. Step 2: Convert to fraction form
    3,299.30/4,949.40 = 1,108.65/x
  3. Step 3: Cross multiply
    3,299.30x = 4,949.40 × 1,108.65
  4. Step 4: Simplify right side
    3,299.30x = 5,487,152.31
  5. Step 5: Solve for x
    x = 5,487,152.31/3,299.30
  6. Step 6: Final answer
    x = 1,663.13

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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.