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Finding the Fourth Proportional to 5,627.58, 7,765.11 and 3,388.92

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Solution

The fourth proportional to 5,627.58, 7,765.11 and 3,388.92 is: 4,676.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.58 : 7,765.11 = 3,388.92 : x
  2. Step 2: Convert to fraction form
    5,627.58/7,765.11 = 3,388.92/x
  3. Step 3: Cross multiply
    5,627.58x = 7,765.11 × 3,388.92
  4. Step 4: Simplify right side
    5,627.58x = 26,315,336.58
  5. Step 5: Solve for x
    x = 26,315,336.58/5,627.58
  6. Step 6: Final answer
    x = 4,676.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.