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Finding the Fourth Proportional to 2,188.08, 3,281.35 and 627.66

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Solution

The fourth proportional to 2,188.08, 3,281.35 and 627.66 is: 941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.08 : 3,281.35 = 627.66 : x
  2. Step 2: Convert to fraction form
    2,188.08/3,281.35 = 627.66/x
  3. Step 3: Cross multiply
    2,188.08x = 3,281.35 × 627.66
  4. Step 4: Simplify right side
    2,188.08x = 2,059,572.14
  5. Step 5: Solve for x
    x = 2,059,572.14/2,188.08
  6. Step 6: Final answer
    x = 941.27

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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.