Home / 2,902.29-4,353.77-927.21

Finding the Fourth Proportional to 2,902.29, 4,353.77 and 927.21

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Solution

The fourth proportional to 2,902.29, 4,353.77 and 927.21 is: 1,390.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.29 : 4,353.77 = 927.21 : x
  2. Step 2: Convert to fraction form
    2,902.29/4,353.77 = 927.21/x
  3. Step 3: Cross multiply
    2,902.29x = 4,353.77 × 927.21
  4. Step 4: Simplify right side
    2,902.29x = 4,036,859.08
  5. Step 5: Solve for x
    x = 4,036,859.08/2,902.29
  6. Step 6: Final answer
    x = 1,390.92

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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.