Home / 4,990.20-6,886.55-3,000.37

Finding the Fourth Proportional to 4,990.20, 6,886.55 and 3,000.37

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Solution

The fourth proportional to 4,990.20, 6,886.55 and 3,000.37 is: 4,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.20 : 6,886.55 = 3,000.37 : x
  2. Step 2: Convert to fraction form
    4,990.20/6,886.55 = 3,000.37/x
  3. Step 3: Cross multiply
    4,990.20x = 6,886.55 × 3,000.37
  4. Step 4: Simplify right side
    4,990.20x = 20,662,163.59
  5. Step 5: Solve for x
    x = 20,662,163.59/4,990.20
  6. Step 6: Final answer
    x = 4,140.55

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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.