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Finding the Fourth Proportional to 3,309.96, 4,955.07 and 2,137.69

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Solution

The fourth proportional to 3,309.96, 4,955.07 and 2,137.69 is: 3,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.96 : 4,955.07 = 2,137.69 : x
  2. Step 2: Convert to fraction form
    3,309.96/4,955.07 = 2,137.69/x
  3. Step 3: Cross multiply
    3,309.96x = 4,955.07 × 2,137.69
  4. Step 4: Simplify right side
    3,309.96x = 10,592,417.80
  5. Step 5: Solve for x
    x = 10,592,417.80/3,309.96
  6. Step 6: Final answer
    x = 3,200.16

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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.