Home / 6,639.39-9,162.63-3,655.50

Finding the Fourth Proportional to 6,639.39, 9,162.63 and 3,655.50

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Solution

The fourth proportional to 6,639.39, 9,162.63 and 3,655.50 is: 5,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.39 : 9,162.63 = 3,655.50 : x
  2. Step 2: Convert to fraction form
    6,639.39/9,162.63 = 3,655.50/x
  3. Step 3: Cross multiply
    6,639.39x = 9,162.63 × 3,655.50
  4. Step 4: Simplify right side
    6,639.39x = 33,493,975.69
  5. Step 5: Solve for x
    x = 33,493,975.69/6,639.39
  6. Step 6: Final answer
    x = 5,044.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.