Home / 3,490.50-5,235.84-1,382.04

Finding the Fourth Proportional to 3,490.50, 5,235.84 and 1,382.04

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Solution

The fourth proportional to 3,490.50, 5,235.84 and 1,382.04 is: 2,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.50 : 5,235.84 = 1,382.04 : x
  2. Step 2: Convert to fraction form
    3,490.50/5,235.84 = 1,382.04/x
  3. Step 3: Cross multiply
    3,490.50x = 5,235.84 × 1,382.04
  4. Step 4: Simplify right side
    3,490.50x = 7,236,140.31
  5. Step 5: Solve for x
    x = 7,236,140.31/3,490.50
  6. Step 6: Final answer
    x = 2,073.10

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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.