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Finding the Fourth Proportional to 6,564.70, 9,847.05 and 4,231.90

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Solution

The fourth proportional to 6,564.70, 9,847.05 and 4,231.90 is: 6,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,564.70 : 9,847.05 = 4,231.90 : x
  2. Step 2: Convert to fraction form
    6,564.70/9,847.05 = 4,231.90/x
  3. Step 3: Cross multiply
    6,564.70x = 9,847.05 × 4,231.90
  4. Step 4: Simplify right side
    6,564.70x = 41,671,730.90
  5. Step 5: Solve for x
    x = 41,671,730.90/6,564.70
  6. Step 6: Final answer
    x = 6,347.85

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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.