Home / 7,392.16-11,091.12-3,499.84

Finding the Fourth Proportional to 7,392.16, 11,091.12 and 3,499.84

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Solution

The fourth proportional to 7,392.16, 11,091.12 and 3,499.84 is: 5,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.16 : 11,091.12 = 3,499.84 : x
  2. Step 2: Convert to fraction form
    7,392.16/11,091.12 = 3,499.84/x
  3. Step 3: Cross multiply
    7,392.16x = 11,091.12 × 3,499.84
  4. Step 4: Simplify right side
    7,392.16x = 38,817,145.42
  5. Step 5: Solve for x
    x = 38,817,145.42/7,392.16
  6. Step 6: Final answer
    x = 5,251.12

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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.