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Finding the Fourth Proportional to 3,488.18, 4,811.13 and 2,228.22

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Solution

The fourth proportional to 3,488.18, 4,811.13 and 2,228.22 is: 3,073.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.18 : 4,811.13 = 2,228.22 : x
  2. Step 2: Convert to fraction form
    3,488.18/4,811.13 = 2,228.22/x
  3. Step 3: Cross multiply
    3,488.18x = 4,811.13 × 2,228.22
  4. Step 4: Simplify right side
    3,488.18x = 10,720,256.09
  5. Step 5: Solve for x
    x = 10,720,256.09/3,488.18
  6. Step 6: Final answer
    x = 3,073.31

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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.