Home / 6,436.96-9,657.39-2,690.56

Finding the Fourth Proportional to 6,436.96, 9,657.39 and 2,690.56

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Solution

The fourth proportional to 6,436.96, 9,657.39 and 2,690.56 is: 4,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.96 : 9,657.39 = 2,690.56 : x
  2. Step 2: Convert to fraction form
    6,436.96/9,657.39 = 2,690.56/x
  3. Step 3: Cross multiply
    6,436.96x = 9,657.39 × 2,690.56
  4. Step 4: Simplify right side
    6,436.96x = 25,983,763.09
  5. Step 5: Solve for x
    x = 25,983,763.09/6,436.96
  6. Step 6: Final answer
    x = 4,036.65

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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.