Home / 7,342.12-11,011.74-2,148.04

Finding the Fourth Proportional to 7,342.12, 11,011.74 and 2,148.04

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Solution

The fourth proportional to 7,342.12, 11,011.74 and 2,148.04 is: 3,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.12 : 11,011.74 = 2,148.04 : x
  2. Step 2: Convert to fraction form
    7,342.12/11,011.74 = 2,148.04/x
  3. Step 3: Cross multiply
    7,342.12x = 11,011.74 × 2,148.04
  4. Step 4: Simplify right side
    7,342.12x = 23,653,657.99
  5. Step 5: Solve for x
    x = 23,653,657.99/7,342.12
  6. Step 6: Final answer
    x = 3,221.64

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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.