Home / 7,790.59-11,686.92-2,860.29

Finding the Fourth Proportional to 7,790.59, 11,686.92 and 2,860.29

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Solution

The fourth proportional to 7,790.59, 11,686.92 and 2,860.29 is: 4,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.59 : 11,686.92 = 2,860.29 : x
  2. Step 2: Convert to fraction form
    7,790.59/11,686.92 = 2,860.29/x
  3. Step 3: Cross multiply
    7,790.59x = 11,686.92 × 2,860.29
  4. Step 4: Simplify right side
    7,790.59x = 33,427,969.68
  5. Step 5: Solve for x
    x = 33,427,969.68/7,790.59
  6. Step 6: Final answer
    x = 4,290.81

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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.