Home / 7,101.80-9,799.62-3,956.84

Finding the Fourth Proportional to 7,101.80, 9,799.62 and 3,956.84

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Solution

The fourth proportional to 7,101.80, 9,799.62 and 3,956.84 is: 5,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.80 : 9,799.62 = 3,956.84 : x
  2. Step 2: Convert to fraction form
    7,101.80/9,799.62 = 3,956.84/x
  3. Step 3: Cross multiply
    7,101.80x = 9,799.62 × 3,956.84
  4. Step 4: Simplify right side
    7,101.80x = 38,775,528.40
  5. Step 5: Solve for x
    x = 38,775,528.40/7,101.80
  6. Step 6: Final answer
    x = 5,459.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.