Home / 6,639.52-9,162.02-3,806.86

Finding the Fourth Proportional to 6,639.52, 9,162.02 and 3,806.86

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Solution

The fourth proportional to 6,639.52, 9,162.02 and 3,806.86 is: 5,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.52 : 9,162.02 = 3,806.86 : x
  2. Step 2: Convert to fraction form
    6,639.52/9,162.02 = 3,806.86/x
  3. Step 3: Cross multiply
    6,639.52x = 9,162.02 × 3,806.86
  4. Step 4: Simplify right side
    6,639.52x = 34,878,527.46
  5. Step 5: Solve for x
    x = 34,878,527.46/6,639.52
  6. Step 6: Final answer
    x = 5,253.17

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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.