Home / 3,436.97-5,155.65-1,489.32

Finding the Fourth Proportional to 3,436.97, 5,155.65 and 1,489.32

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Solution

The fourth proportional to 3,436.97, 5,155.65 and 1,489.32 is: 2,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.97 : 5,155.65 = 1,489.32 : x
  2. Step 2: Convert to fraction form
    3,436.97/5,155.65 = 1,489.32/x
  3. Step 3: Cross multiply
    3,436.97x = 5,155.65 × 1,489.32
  4. Step 4: Simplify right side
    3,436.97x = 7,678,412.66
  5. Step 5: Solve for x
    x = 7,678,412.66/3,436.97
  6. Step 6: Final answer
    x = 2,234.07

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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.