Home / 7,718.41-11,577.62-2,171.80

Finding the Fourth Proportional to 7,718.41, 11,577.62 and 2,171.80

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Solution

The fourth proportional to 7,718.41, 11,577.62 and 2,171.80 is: 3,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.41 : 11,577.62 = 2,171.80 : x
  2. Step 2: Convert to fraction form
    7,718.41/11,577.62 = 2,171.80/x
  3. Step 3: Cross multiply
    7,718.41x = 11,577.62 × 2,171.80
  4. Step 4: Simplify right side
    7,718.41x = 25,144,275.12
  5. Step 5: Solve for x
    x = 25,144,275.12/7,718.41
  6. Step 6: Final answer
    x = 3,257.70

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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.