Home / 5,238.64-7,856.27-1,727.85

Finding the Fourth Proportional to 5,238.64, 7,856.27 and 1,727.85

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Solution

The fourth proportional to 5,238.64, 7,856.27 and 1,727.85 is: 2,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.64 : 7,856.27 = 1,727.85 : x
  2. Step 2: Convert to fraction form
    5,238.64/7,856.27 = 1,727.85/x
  3. Step 3: Cross multiply
    5,238.64x = 7,856.27 × 1,727.85
  4. Step 4: Simplify right side
    5,238.64x = 13,574,475.76
  5. Step 5: Solve for x
    x = 13,574,475.76/5,238.64
  6. Step 6: Final answer
    x = 2,591.22

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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.