Home / 3,713.92-5,559.36-2,688.64

Finding the Fourth Proportional to 3,713.92, 5,559.36 and 2,688.64

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Solution

The fourth proportional to 3,713.92, 5,559.36 and 2,688.64 is: 4,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.92 : 5,559.36 = 2,688.64 : x
  2. Step 2: Convert to fraction form
    3,713.92/5,559.36 = 2,688.64/x
  3. Step 3: Cross multiply
    3,713.92x = 5,559.36 × 2,688.64
  4. Step 4: Simplify right side
    3,713.92x = 14,947,117.67
  5. Step 5: Solve for x
    x = 14,947,117.67/3,713.92
  6. Step 6: Final answer
    x = 4,024.62

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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.