Home / 7,708.80-11,551.68-4,241.28

Finding the Fourth Proportional to 7,708.80, 11,551.68 and 4,241.28

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Solution

The fourth proportional to 7,708.80, 11,551.68 and 4,241.28 is: 6,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.80 : 11,551.68 = 4,241.28 : x
  2. Step 2: Convert to fraction form
    7,708.80/11,551.68 = 4,241.28/x
  3. Step 3: Cross multiply
    7,708.80x = 11,551.68 × 4,241.28
  4. Step 4: Simplify right side
    7,708.80x = 48,993,909.35
  5. Step 5: Solve for x
    x = 48,993,909.35/7,708.80
  6. Step 6: Final answer
    x = 6,355.58

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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.