Home / 3,123.21-4,310.01-1,725.96

Finding the Fourth Proportional to 3,123.21, 4,310.01 and 1,725.96

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Solution

The fourth proportional to 3,123.21, 4,310.01 and 1,725.96 is: 2,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.21 : 4,310.01 = 1,725.96 : x
  2. Step 2: Convert to fraction form
    3,123.21/4,310.01 = 1,725.96/x
  3. Step 3: Cross multiply
    3,123.21x = 4,310.01 × 1,725.96
  4. Step 4: Simplify right side
    3,123.21x = 7,438,904.86
  5. Step 5: Solve for x
    x = 7,438,904.86/3,123.21
  6. Step 6: Final answer
    x = 2,381.81

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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.