Home / 4,205.20-6,307.80-4,112.95

Finding the Fourth Proportional to 4,205.20, 6,307.80 and 4,112.95

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Solution

The fourth proportional to 4,205.20, 6,307.80 and 4,112.95 is: 6,169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205.20 : 6,307.80 = 4,112.95 : x
  2. Step 2: Convert to fraction form
    4,205.20/6,307.80 = 4,112.95/x
  3. Step 3: Cross multiply
    4,205.20x = 6,307.80 × 4,112.95
  4. Step 4: Simplify right side
    4,205.20x = 25,943,666.01
  5. Step 5: Solve for x
    x = 25,943,666.01/4,205.20
  6. Step 6: Final answer
    x = 6,169.43

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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.