Home / 6,528.40-9,793.84-2,147.12

Finding the Fourth Proportional to 6,528.40, 9,793.84 and 2,147.12

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Solution

The fourth proportional to 6,528.40, 9,793.84 and 2,147.12 is: 3,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.40 : 9,793.84 = 2,147.12 : x
  2. Step 2: Convert to fraction form
    6,528.40/9,793.84 = 2,147.12/x
  3. Step 3: Cross multiply
    6,528.40x = 9,793.84 × 2,147.12
  4. Step 4: Simplify right side
    6,528.40x = 21,028,549.74
  5. Step 5: Solve for x
    x = 21,028,549.74/6,528.40
  6. Step 6: Final answer
    x = 3,221.09

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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.