Home / 2,908.42-4,011.60-2,011.76

Finding the Fourth Proportional to 2,908.42, 4,011.60 and 2,011.76

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Solution

The fourth proportional to 2,908.42, 4,011.60 and 2,011.76 is: 2,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.42 : 4,011.60 = 2,011.76 : x
  2. Step 2: Convert to fraction form
    2,908.42/4,011.60 = 2,011.76/x
  3. Step 3: Cross multiply
    2,908.42x = 4,011.60 × 2,011.76
  4. Step 4: Simplify right side
    2,908.42x = 8,070,376.42
  5. Step 5: Solve for x
    x = 8,070,376.42/2,908.42
  6. Step 6: Final answer
    x = 2,774.83

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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.