Home / 5,231.29-7,845.74-3,123.51

Finding the Fourth Proportional to 5,231.29, 7,845.74 and 3,123.51

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Solution

The fourth proportional to 5,231.29, 7,845.74 and 3,123.51 is: 4,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.29 : 7,845.74 = 3,123.51 : x
  2. Step 2: Convert to fraction form
    5,231.29/7,845.74 = 3,123.51/x
  3. Step 3: Cross multiply
    5,231.29x = 7,845.74 × 3,123.51
  4. Step 4: Simplify right side
    5,231.29x = 24,506,231.73
  5. Step 5: Solve for x
    x = 24,506,231.73/5,231.29
  6. Step 6: Final answer
    x = 4,684.55

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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.