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Finding the Fourth Proportional to 4,741.79, 7,113.11 and 2,891.97

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Solution

The fourth proportional to 4,741.79, 7,113.11 and 2,891.97 is: 4,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,741.79 : 7,113.11 = 2,891.97 : x
  2. Step 2: Convert to fraction form
    4,741.79/7,113.11 = 2,891.97/x
  3. Step 3: Cross multiply
    4,741.79x = 7,113.11 × 2,891.97
  4. Step 4: Simplify right side
    4,741.79x = 20,570,886.27
  5. Step 5: Solve for x
    x = 20,570,886.27/4,741.79
  6. Step 6: Final answer
    x = 4,338.22

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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.