Home / 5,187.45-7,775.36-2,066.63

Finding the Fourth Proportional to 5,187.45, 7,775.36 and 2,066.63

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Solution

The fourth proportional to 5,187.45, 7,775.36 and 2,066.63 is: 3,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.45 : 7,775.36 = 2,066.63 : x
  2. Step 2: Convert to fraction form
    5,187.45/7,775.36 = 2,066.63/x
  3. Step 3: Cross multiply
    5,187.45x = 7,775.36 × 2,066.63
  4. Step 4: Simplify right side
    5,187.45x = 16,068,743.03
  5. Step 5: Solve for x
    x = 16,068,743.03/5,187.45
  6. Step 6: Final answer
    x = 3,097.62

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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.