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Finding the Fourth Proportional to 6,147.77, 9,221.65 and 1,765.56

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Solution

The fourth proportional to 6,147.77, 9,221.65 and 1,765.56 is: 2,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.77 : 9,221.65 = 1,765.56 : x
  2. Step 2: Convert to fraction form
    6,147.77/9,221.65 = 1,765.56/x
  3. Step 3: Cross multiply
    6,147.77x = 9,221.65 × 1,765.56
  4. Step 4: Simplify right side
    6,147.77x = 16,281,406.54
  5. Step 5: Solve for x
    x = 16,281,406.54/6,147.77
  6. Step 6: Final answer
    x = 2,648.35

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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.