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Finding the Fourth Proportional to 6,666.37, 9,977.85 and 4,910.68

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Solution

The fourth proportional to 6,666.37, 9,977.85 and 4,910.68 is: 7,350.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.37 : 9,977.85 = 4,910.68 : x
  2. Step 2: Convert to fraction form
    6,666.37/9,977.85 = 4,910.68/x
  3. Step 3: Cross multiply
    6,666.37x = 9,977.85 × 4,910.68
  4. Step 4: Simplify right side
    6,666.37x = 48,998,040.91
  5. Step 5: Solve for x
    x = 48,998,040.91/6,666.37
  6. Step 6: Final answer
    x = 7,350.04

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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.