Home / 4,891.77-7,321.61-2,667.21

Finding the Fourth Proportional to 4,891.77, 7,321.61 and 2,667.21

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Solution

The fourth proportional to 4,891.77, 7,321.61 and 2,667.21 is: 3,992.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.77 : 7,321.61 = 2,667.21 : x
  2. Step 2: Convert to fraction form
    4,891.77/7,321.61 = 2,667.21/x
  3. Step 3: Cross multiply
    4,891.77x = 7,321.61 × 2,667.21
  4. Step 4: Simplify right side
    4,891.77x = 19,528,258.07
  5. Step 5: Solve for x
    x = 19,528,258.07/4,891.77
  6. Step 6: Final answer
    x = 3,992.06

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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.