Home / 2,731.53-3,765.54-2,172.23

Finding the Fourth Proportional to 2,731.53, 3,765.54 and 2,172.23

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Solution

The fourth proportional to 2,731.53, 3,765.54 and 2,172.23 is: 2,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.53 : 3,765.54 = 2,172.23 : x
  2. Step 2: Convert to fraction form
    2,731.53/3,765.54 = 2,172.23/x
  3. Step 3: Cross multiply
    2,731.53x = 3,765.54 × 2,172.23
  4. Step 4: Simplify right side
    2,731.53x = 8,179,600.13
  5. Step 5: Solve for x
    x = 8,179,600.13/2,731.53
  6. Step 6: Final answer
    x = 2,994.51

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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.