Home / 7,171.12-9,896.01-3,984.43

Finding the Fourth Proportional to 7,171.12, 9,896.01 and 3,984.43

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Solution

The fourth proportional to 7,171.12, 9,896.01 and 3,984.43 is: 5,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.12 : 9,896.01 = 3,984.43 : x
  2. Step 2: Convert to fraction form
    7,171.12/9,896.01 = 3,984.43/x
  3. Step 3: Cross multiply
    7,171.12x = 9,896.01 × 3,984.43
  4. Step 4: Simplify right side
    7,171.12x = 39,429,909.64
  5. Step 5: Solve for x
    x = 39,429,909.64/7,171.12
  6. Step 6: Final answer
    x = 5,498.43

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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.