Home / 7,799.85-11,699.82-2,605.71

Finding the Fourth Proportional to 7,799.85, 11,699.82 and 2,605.71

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Solution

The fourth proportional to 7,799.85, 11,699.82 and 2,605.71 is: 3,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.85 : 11,699.82 = 2,605.71 : x
  2. Step 2: Convert to fraction form
    7,799.85/11,699.82 = 2,605.71/x
  3. Step 3: Cross multiply
    7,799.85x = 11,699.82 × 2,605.71
  4. Step 4: Simplify right side
    7,799.85x = 30,486,337.97
  5. Step 5: Solve for x
    x = 30,486,337.97/7,799.85
  6. Step 6: Final answer
    x = 3,908.58

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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.