Home / 4,272.53-6,406.52-2,191.70

Finding the Fourth Proportional to 4,272.53, 6,406.52 and 2,191.70

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Solution

The fourth proportional to 4,272.53, 6,406.52 and 2,191.70 is: 3,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.53 : 6,406.52 = 2,191.70 : x
  2. Step 2: Convert to fraction form
    4,272.53/6,406.52 = 2,191.70/x
  3. Step 3: Cross multiply
    4,272.53x = 6,406.52 × 2,191.70
  4. Step 4: Simplify right side
    4,272.53x = 14,041,126.89
  5. Step 5: Solve for x
    x = 14,041,126.89/4,272.53
  6. Step 6: Final answer
    x = 3,286.38

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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.