Home / 3,123.70-4,305.30-2,283.10

Finding the Fourth Proportional to 3,123.70, 4,305.30 and 2,283.10

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Solution

The fourth proportional to 3,123.70, 4,305.30 and 2,283.10 is: 3,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.70 : 4,305.30 = 2,283.10 : x
  2. Step 2: Convert to fraction form
    3,123.70/4,305.30 = 2,283.10/x
  3. Step 3: Cross multiply
    3,123.70x = 4,305.30 × 2,283.10
  4. Step 4: Simplify right side
    3,123.70x = 9,829,430.43
  5. Step 5: Solve for x
    x = 9,829,430.43/3,123.70
  6. Step 6: Final answer
    x = 3,146.73

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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.