Home / 4,085-6,123.88-1,487.36

Finding the Fourth Proportional to 4,085, 6,123.88 and 1,487.36

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Solution

The fourth proportional to 4,085, 6,123.88 and 1,487.36 is: 2,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085 : 6,123.88 = 1,487.36 : x
  2. Step 2: Convert to fraction form
    4,085/6,123.88 = 1,487.36/x
  3. Step 3: Cross multiply
    4,085x = 6,123.88 × 1,487.36
  4. Step 4: Simplify right side
    4,085x = 9,108,414.16
  5. Step 5: Solve for x
    x = 9,108,414.16/4,085
  6. Step 6: Final answer
    x = 2,229.72

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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.