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Finding the Fourth Proportional to 5,449.53, 7,520.13 and 3,091.62

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Solution

The fourth proportional to 5,449.53, 7,520.13 and 3,091.62 is: 4,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.53 : 7,520.13 = 3,091.62 : x
  2. Step 2: Convert to fraction form
    5,449.53/7,520.13 = 3,091.62/x
  3. Step 3: Cross multiply
    5,449.53x = 7,520.13 × 3,091.62
  4. Step 4: Simplify right side
    5,449.53x = 23,249,384.31
  5. Step 5: Solve for x
    x = 23,249,384.31/5,449.53
  6. Step 6: Final answer
    x = 4,266.31

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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.