Home / 4,591.42-6,881.85-2,121.05

Finding the Fourth Proportional to 4,591.42, 6,881.85 and 2,121.05

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Solution

The fourth proportional to 4,591.42, 6,881.85 and 2,121.05 is: 3,179.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591.42 : 6,881.85 = 2,121.05 : x
  2. Step 2: Convert to fraction form
    4,591.42/6,881.85 = 2,121.05/x
  3. Step 3: Cross multiply
    4,591.42x = 6,881.85 × 2,121.05
  4. Step 4: Simplify right side
    4,591.42x = 14,596,747.94
  5. Step 5: Solve for x
    x = 14,596,747.94/4,591.42
  6. Step 6: Final answer
    x = 3,179.14

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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.