Home / 3,123.12-4,673.34-2,763.48

Finding the Fourth Proportional to 3,123.12, 4,673.34 and 2,763.48

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Solution

The fourth proportional to 3,123.12, 4,673.34 and 2,763.48 is: 4,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.12 : 4,673.34 = 2,763.48 : x
  2. Step 2: Convert to fraction form
    3,123.12/4,673.34 = 2,763.48/x
  3. Step 3: Cross multiply
    3,123.12x = 4,673.34 × 2,763.48
  4. Step 4: Simplify right side
    3,123.12x = 12,914,681.62
  5. Step 5: Solve for x
    x = 12,914,681.62/3,123.12
  6. Step 6: Final answer
    x = 4,135.19

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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.