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Finding the Fourth Proportional to 5,486.22, 7,574.45 and 3,807.09

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Solution

The fourth proportional to 5,486.22, 7,574.45 and 3,807.09 is: 5,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.22 : 7,574.45 = 3,807.09 : x
  2. Step 2: Convert to fraction form
    5,486.22/7,574.45 = 3,807.09/x
  3. Step 3: Cross multiply
    5,486.22x = 7,574.45 × 3,807.09
  4. Step 4: Simplify right side
    5,486.22x = 28,836,593.82
  5. Step 5: Solve for x
    x = 28,836,593.82/5,486.22
  6. Step 6: Final answer
    x = 5,256.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.