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Finding the Fourth Proportional to 6,886.70, 10,330.73 and 2,205.53

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Solution

The fourth proportional to 6,886.70, 10,330.73 and 2,205.53 is: 3,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.70 : 10,330.73 = 2,205.53 : x
  2. Step 2: Convert to fraction form
    6,886.70/10,330.73 = 2,205.53/x
  3. Step 3: Cross multiply
    6,886.70x = 10,330.73 × 2,205.53
  4. Step 4: Simplify right side
    6,886.70x = 22,784,672.26
  5. Step 5: Solve for x
    x = 22,784,672.26/6,886.70
  6. Step 6: Final answer
    x = 3,308.51

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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.