Home / 6,318.77-9,479.27-2,157.80

Finding the Fourth Proportional to 6,318.77, 9,479.27 and 2,157.80

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Solution

The fourth proportional to 6,318.77, 9,479.27 and 2,157.80 is: 3,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.77 : 9,479.27 = 2,157.80 : x
  2. Step 2: Convert to fraction form
    6,318.77/9,479.27 = 2,157.80/x
  3. Step 3: Cross multiply
    6,318.77x = 9,479.27 × 2,157.80
  4. Step 4: Simplify right side
    6,318.77x = 20,454,411.93
  5. Step 5: Solve for x
    x = 20,454,411.93/6,318.77
  6. Step 6: Final answer
    x = 3,237.09

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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.