Home / 4,218.36-6,330.98-2,986.95

Finding the Fourth Proportional to 4,218.36, 6,330.98 and 2,986.95

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Solution

The fourth proportional to 4,218.36, 6,330.98 and 2,986.95 is: 4,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.36 : 6,330.98 = 2,986.95 : x
  2. Step 2: Convert to fraction form
    4,218.36/6,330.98 = 2,986.95/x
  3. Step 3: Cross multiply
    4,218.36x = 6,330.98 × 2,986.95
  4. Step 4: Simplify right side
    4,218.36x = 18,910,305.78
  5. Step 5: Solve for x
    x = 18,910,305.78/4,218.36
  6. Step 6: Final answer
    x = 4,482.86

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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.