Home / 4,827.28-7,240.60-1,539.92

Finding the Fourth Proportional to 4,827.28, 7,240.60 and 1,539.92

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Solution

The fourth proportional to 4,827.28, 7,240.60 and 1,539.92 is: 2,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.28 : 7,240.60 = 1,539.92 : x
  2. Step 2: Convert to fraction form
    4,827.28/7,240.60 = 1,539.92/x
  3. Step 3: Cross multiply
    4,827.28x = 7,240.60 × 1,539.92
  4. Step 4: Simplify right side
    4,827.28x = 11,149,944.75
  5. Step 5: Solve for x
    x = 11,149,944.75/4,827.28
  6. Step 6: Final answer
    x = 2,309.78

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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.