Home / 3,239.70-4,468.77-2,120.10

Finding the Fourth Proportional to 3,239.70, 4,468.77 and 2,120.10

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Solution

The fourth proportional to 3,239.70, 4,468.77 and 2,120.10 is: 2,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.70 : 4,468.77 = 2,120.10 : x
  2. Step 2: Convert to fraction form
    3,239.70/4,468.77 = 2,120.10/x
  3. Step 3: Cross multiply
    3,239.70x = 4,468.77 × 2,120.10
  4. Step 4: Simplify right side
    3,239.70x = 9,474,239.28
  5. Step 5: Solve for x
    x = 9,474,239.28/3,239.70
  6. Step 6: Final answer
    x = 2,924.42

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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.