Home / 6,318.88-9,479.40-2,158.66

Finding the Fourth Proportional to 6,318.88, 9,479.40 and 2,158.66

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Solution

The fourth proportional to 6,318.88, 9,479.40 and 2,158.66 is: 3,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.88 : 9,479.40 = 2,158.66 : x
  2. Step 2: Convert to fraction form
    6,318.88/9,479.40 = 2,158.66/x
  3. Step 3: Cross multiply
    6,318.88x = 9,479.40 × 2,158.66
  4. Step 4: Simplify right side
    6,318.88x = 20,462,801.60
  5. Step 5: Solve for x
    x = 20,462,801.60/6,318.88
  6. Step 6: Final answer
    x = 3,238.36

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1.5x scale

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.