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Finding the Fourth Proportional to 5,539.65, 7,629.17 and 5,418.69

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Solution

The fourth proportional to 5,539.65, 7,629.17 and 5,418.69 is: 7,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.65 : 7,629.17 = 5,418.69 : x
  2. Step 2: Convert to fraction form
    5,539.65/7,629.17 = 5,418.69/x
  3. Step 3: Cross multiply
    5,539.65x = 7,629.17 × 5,418.69
  4. Step 4: Simplify right side
    5,539.65x = 41,340,080.09
  5. Step 5: Solve for x
    x = 41,340,080.09/5,539.65
  6. Step 6: Final answer
    x = 7,462.58

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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.