Home / 7,770.14-11,656.92-2,839.77

Finding the Fourth Proportional to 7,770.14, 11,656.92 and 2,839.77

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Solution

The fourth proportional to 7,770.14, 11,656.92 and 2,839.77 is: 4,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.14 : 11,656.92 = 2,839.77 : x
  2. Step 2: Convert to fraction form
    7,770.14/11,656.92 = 2,839.77/x
  3. Step 3: Cross multiply
    7,770.14x = 11,656.92 × 2,839.77
  4. Step 4: Simplify right side
    7,770.14x = 33,102,971.71
  5. Step 5: Solve for x
    x = 33,102,971.71/7,770.14
  6. Step 6: Final answer
    x = 4,260.28

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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.