Home / 6,399.81-8,826.33-4,159.95

Finding the Fourth Proportional to 6,399.81, 8,826.33 and 4,159.95

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Solution

The fourth proportional to 6,399.81, 8,826.33 and 4,159.95 is: 5,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.81 : 8,826.33 = 4,159.95 : x
  2. Step 2: Convert to fraction form
    6,399.81/8,826.33 = 4,159.95/x
  3. Step 3: Cross multiply
    6,399.81x = 8,826.33 × 4,159.95
  4. Step 4: Simplify right side
    6,399.81x = 36,717,091.48
  5. Step 5: Solve for x
    x = 36,717,091.48/6,399.81
  6. Step 6: Final answer
    x = 5,737.22

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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.