Home / 4,078.11-6,117.86-1,304.79

Finding the Fourth Proportional to 4,078.11, 6,117.86 and 1,304.79

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Solution

The fourth proportional to 4,078.11, 6,117.86 and 1,304.79 is: 1,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.11 : 6,117.86 = 1,304.79 : x
  2. Step 2: Convert to fraction form
    4,078.11/6,117.86 = 1,304.79/x
  3. Step 3: Cross multiply
    4,078.11x = 6,117.86 × 1,304.79
  4. Step 4: Simplify right side
    4,078.11x = 7,982,516.03
  5. Step 5: Solve for x
    x = 7,982,516.03/4,078.11
  6. Step 6: Final answer
    x = 1,957.41

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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.