Home / 7,110.12-9,812-3,966.44

Finding the Fourth Proportional to 7,110.12, 9,812 and 3,966.44

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Solution

The fourth proportional to 7,110.12, 9,812 and 3,966.44 is: 5,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.12 : 9,812 = 3,966.44 : x
  2. Step 2: Convert to fraction form
    7,110.12/9,812 = 3,966.44/x
  3. Step 3: Cross multiply
    7,110.12x = 9,812 × 3,966.44
  4. Step 4: Simplify right side
    7,110.12x = 38,918,709.28
  5. Step 5: Solve for x
    x = 38,918,709.28/7,110.12
  6. Step 6: Final answer
    x = 5,473.71

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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.