Home / 7,717.95-11,577.61-2,171.34

Finding the Fourth Proportional to 7,717.95, 11,577.61 and 2,171.34

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Solution

The fourth proportional to 7,717.95, 11,577.61 and 2,171.34 is: 3,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.95 : 11,577.61 = 2,171.34 : x
  2. Step 2: Convert to fraction form
    7,717.95/11,577.61 = 2,171.34/x
  3. Step 3: Cross multiply
    7,717.95x = 11,577.61 × 2,171.34
  4. Step 4: Simplify right side
    7,717.95x = 25,138,927.70
  5. Step 5: Solve for x
    x = 25,138,927.70/7,717.95
  6. Step 6: Final answer
    x = 3,257.20

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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.