Home / 5,238.77-7,856.94-1,540.01

Finding the Fourth Proportional to 5,238.77, 7,856.94 and 1,540.01

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Solution

The fourth proportional to 5,238.77, 7,856.94 and 1,540.01 is: 2,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.77 : 7,856.94 = 1,540.01 : x
  2. Step 2: Convert to fraction form
    5,238.77/7,856.94 = 1,540.01/x
  3. Step 3: Cross multiply
    5,238.77x = 7,856.94 × 1,540.01
  4. Step 4: Simplify right side
    5,238.77x = 12,099,785.81
  5. Step 5: Solve for x
    x = 12,099,785.81/5,238.77
  6. Step 6: Final answer
    x = 2,309.66

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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.