Home / 4,100.40-6,138.45-2,715.30

Finding the Fourth Proportional to 4,100.40, 6,138.45 and 2,715.30

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Solution

The fourth proportional to 4,100.40, 6,138.45 and 2,715.30 is: 4,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,100.40 : 6,138.45 = 2,715.30 : x
  2. Step 2: Convert to fraction form
    4,100.40/6,138.45 = 2,715.30/x
  3. Step 3: Cross multiply
    4,100.40x = 6,138.45 × 2,715.30
  4. Step 4: Simplify right side
    4,100.40x = 16,667,733.29
  5. Step 5: Solve for x
    x = 16,667,733.29/4,100.40
  6. Step 6: Final answer
    x = 4,064.90

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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.