Home / 4,821.12-6,655.06-3,143.95

Finding the Fourth Proportional to 4,821.12, 6,655.06 and 3,143.95

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Solution

The fourth proportional to 4,821.12, 6,655.06 and 3,143.95 is: 4,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.12 : 6,655.06 = 3,143.95 : x
  2. Step 2: Convert to fraction form
    4,821.12/6,655.06 = 3,143.95/x
  3. Step 3: Cross multiply
    4,821.12x = 6,655.06 × 3,143.95
  4. Step 4: Simplify right side
    4,821.12x = 20,923,163.18
  5. Step 5: Solve for x
    x = 20,923,163.18/4,821.12
  6. Step 6: Final answer
    x = 4,339.90

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1.5x scale

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.