Home / 6,636.20-9,938.10-3,169.40

Finding the Fourth Proportional to 6,636.20, 9,938.10 and 3,169.40

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Solution

The fourth proportional to 6,636.20, 9,938.10 and 3,169.40 is: 4,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.20 : 9,938.10 = 3,169.40 : x
  2. Step 2: Convert to fraction form
    6,636.20/9,938.10 = 3,169.40/x
  3. Step 3: Cross multiply
    6,636.20x = 9,938.10 × 3,169.40
  4. Step 4: Simplify right side
    6,636.20x = 31,497,814.14
  5. Step 5: Solve for x
    x = 31,497,814.14/6,636.20
  6. Step 6: Final answer
    x = 4,746.36

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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.