Home / 3,206.96-4,430.40-2,163.68

Finding the Fourth Proportional to 3,206.96, 4,430.40 and 2,163.68

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Solution

The fourth proportional to 3,206.96, 4,430.40 and 2,163.68 is: 2,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.96 : 4,430.40 = 2,163.68 : x
  2. Step 2: Convert to fraction form
    3,206.96/4,430.40 = 2,163.68/x
  3. Step 3: Cross multiply
    3,206.96x = 4,430.40 × 2,163.68
  4. Step 4: Simplify right side
    3,206.96x = 9,585,967.87
  5. Step 5: Solve for x
    x = 9,585,967.87/3,206.96
  6. Step 6: Final answer
    x = 2,989.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.