Home / 7,479.31-11,221.16-2,214.46

Finding the Fourth Proportional to 7,479.31, 11,221.16 and 2,214.46

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Solution

The fourth proportional to 7,479.31, 11,221.16 and 2,214.46 is: 3,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.31 : 11,221.16 = 2,214.46 : x
  2. Step 2: Convert to fraction form
    7,479.31/11,221.16 = 2,214.46/x
  3. Step 3: Cross multiply
    7,479.31x = 11,221.16 × 2,214.46
  4. Step 4: Simplify right side
    7,479.31x = 24,848,817.39
  5. Step 5: Solve for x
    x = 24,848,817.39/7,479.31
  6. Step 6: Final answer
    x = 3,322.34

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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.