Home / 4,200.20-6,304.35-2,122.55

Finding the Fourth Proportional to 4,200.20, 6,304.35 and 2,122.55

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Solution

The fourth proportional to 4,200.20, 6,304.35 and 2,122.55 is: 3,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.20 : 6,304.35 = 2,122.55 : x
  2. Step 2: Convert to fraction form
    4,200.20/6,304.35 = 2,122.55/x
  3. Step 3: Cross multiply
    4,200.20x = 6,304.35 × 2,122.55
  4. Step 4: Simplify right side
    4,200.20x = 13,381,298.09
  5. Step 5: Solve for x
    x = 13,381,298.09/4,200.20
  6. Step 6: Final answer
    x = 3,185.87

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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.