Home / 5,308.35-7,961.95-2,188.74

Finding the Fourth Proportional to 5,308.35, 7,961.95 and 2,188.74

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Solution

The fourth proportional to 5,308.35, 7,961.95 and 2,188.74 is: 3,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.35 : 7,961.95 = 2,188.74 : x
  2. Step 2: Convert to fraction form
    5,308.35/7,961.95 = 2,188.74/x
  3. Step 3: Cross multiply
    5,308.35x = 7,961.95 × 2,188.74
  4. Step 4: Simplify right side
    5,308.35x = 17,426,638.44
  5. Step 5: Solve for x
    x = 17,426,638.44/5,308.35
  6. Step 6: Final answer
    x = 3,282.87

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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.