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Finding the Fourth Proportional to 4,908.10, 6,770.04 and 2,917.20

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Solution

The fourth proportional to 4,908.10, 6,770.04 and 2,917.20 is: 4,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.10 : 6,770.04 = 2,917.20 : x
  2. Step 2: Convert to fraction form
    4,908.10/6,770.04 = 2,917.20/x
  3. Step 3: Cross multiply
    4,908.10x = 6,770.04 × 2,917.20
  4. Step 4: Simplify right side
    4,908.10x = 19,749,560.69
  5. Step 5: Solve for x
    x = 19,749,560.69/4,908.10
  6. Step 6: Final answer
    x = 4,023.87

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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.