Home / 2,772.16-3,821.88-2,298.28

Finding the Fourth Proportional to 2,772.16, 3,821.88 and 2,298.28

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Solution

The fourth proportional to 2,772.16, 3,821.88 and 2,298.28 is: 3,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.16 : 3,821.88 = 2,298.28 : x
  2. Step 2: Convert to fraction form
    2,772.16/3,821.88 = 2,298.28/x
  3. Step 3: Cross multiply
    2,772.16x = 3,821.88 × 2,298.28
  4. Step 4: Simplify right side
    2,772.16x = 8,783,750.37
  5. Step 5: Solve for x
    x = 8,783,750.37/2,772.16
  6. Step 6: Final answer
    x = 3,168.56

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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.