Home / 3,309.98-4,568.79-2,131.05

Finding the Fourth Proportional to 3,309.98, 4,568.79 and 2,131.05

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Solution

The fourth proportional to 3,309.98, 4,568.79 and 2,131.05 is: 2,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.98 : 4,568.79 = 2,131.05 : x
  2. Step 2: Convert to fraction form
    3,309.98/4,568.79 = 2,131.05/x
  3. Step 3: Cross multiply
    3,309.98x = 4,568.79 × 2,131.05
  4. Step 4: Simplify right side
    3,309.98x = 9,736,319.93
  5. Step 5: Solve for x
    x = 9,736,319.93/3,309.98
  6. Step 6: Final answer
    x = 2,941.50

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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.