Home / 3,772.13-5,205.56-2,116.13

Finding the Fourth Proportional to 3,772.13, 5,205.56 and 2,116.13

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Solution

The fourth proportional to 3,772.13, 5,205.56 and 2,116.13 is: 2,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.13 : 5,205.56 = 2,116.13 : x
  2. Step 2: Convert to fraction form
    3,772.13/5,205.56 = 2,116.13/x
  3. Step 3: Cross multiply
    3,772.13x = 5,205.56 × 2,116.13
  4. Step 4: Simplify right side
    3,772.13x = 11,015,605.07
  5. Step 5: Solve for x
    x = 11,015,605.07/3,772.13
  6. Step 6: Final answer
    x = 2,920.27

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Half scale
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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.