Home / 7,860.39-11,790.57-2,016.99

Finding the Fourth Proportional to 7,860.39, 11,790.57 and 2,016.99

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Solution

The fourth proportional to 7,860.39, 11,790.57 and 2,016.99 is: 3,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.39 : 11,790.57 = 2,016.99 : x
  2. Step 2: Convert to fraction form
    7,860.39/11,790.57 = 2,016.99/x
  3. Step 3: Cross multiply
    7,860.39x = 11,790.57 × 2,016.99
  4. Step 4: Simplify right side
    7,860.39x = 23,781,461.78
  5. Step 5: Solve for x
    x = 23,781,461.78/7,860.39
  6. Step 6: Final answer
    x = 3,025.48

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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.