Home / 5,238.37-7,856.70-1,540.18

Finding the Fourth Proportional to 5,238.37, 7,856.70 and 1,540.18

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Solution

The fourth proportional to 5,238.37, 7,856.70 and 1,540.18 is: 2,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.37 : 7,856.70 = 1,540.18 : x
  2. Step 2: Convert to fraction form
    5,238.37/7,856.70 = 1,540.18/x
  3. Step 3: Cross multiply
    5,238.37x = 7,856.70 × 1,540.18
  4. Step 4: Simplify right side
    5,238.37x = 12,100,732.21
  5. Step 5: Solve for x
    x = 12,100,732.21/5,238.37
  6. Step 6: Final answer
    x = 2,310.02

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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.