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Finding the Fourth Proportional to 4,913.05, 6,779.88 and 2,674.88

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Solution

The fourth proportional to 4,913.05, 6,779.88 and 2,674.88 is: 3,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.05 : 6,779.88 = 2,674.88 : x
  2. Step 2: Convert to fraction form
    4,913.05/6,779.88 = 2,674.88/x
  3. Step 3: Cross multiply
    4,913.05x = 6,779.88 × 2,674.88
  4. Step 4: Simplify right side
    4,913.05x = 18,135,318.14
  5. Step 5: Solve for x
    x = 18,135,318.14/4,913.05
  6. Step 6: Final answer
    x = 3,691.25

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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.