Home / 3,238.49-4,469.76-2,117.40

Finding the Fourth Proportional to 3,238.49, 4,469.76 and 2,117.40

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Solution

The fourth proportional to 3,238.49, 4,469.76 and 2,117.40 is: 2,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.49 : 4,469.76 = 2,117.40 : x
  2. Step 2: Convert to fraction form
    3,238.49/4,469.76 = 2,117.40/x
  3. Step 3: Cross multiply
    3,238.49x = 4,469.76 × 2,117.40
  4. Step 4: Simplify right side
    3,238.49x = 9,464,269.82
  5. Step 5: Solve for x
    x = 9,464,269.82/3,238.49
  6. Step 6: Final answer
    x = 2,922.43

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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.