Home / 7,107.12-10,660.05-3,211.83

Finding the Fourth Proportional to 7,107.12, 10,660.05 and 3,211.83

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Solution

The fourth proportional to 7,107.12, 10,660.05 and 3,211.83 is: 4,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.12 : 10,660.05 = 3,211.83 : x
  2. Step 2: Convert to fraction form
    7,107.12/10,660.05 = 3,211.83/x
  3. Step 3: Cross multiply
    7,107.12x = 10,660.05 × 3,211.83
  4. Step 4: Simplify right side
    7,107.12x = 34,238,268.39
  5. Step 5: Solve for x
    x = 34,238,268.39/7,107.12
  6. Step 6: Final answer
    x = 4,817.46

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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.