Home / 2,154.44-3,232.51-921.83

Finding the Fourth Proportional to 2,154.44, 3,232.51 and 921.83

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Solution

The fourth proportional to 2,154.44, 3,232.51 and 921.83 is: 1,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.44 : 3,232.51 = 921.83 : x
  2. Step 2: Convert to fraction form
    2,154.44/3,232.51 = 921.83/x
  3. Step 3: Cross multiply
    2,154.44x = 3,232.51 × 921.83
  4. Step 4: Simplify right side
    2,154.44x = 2,979,806.23
  5. Step 5: Solve for x
    x = 2,979,806.23/2,154.44
  6. Step 6: Final answer
    x = 1,383.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.