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Finding the Fourth Proportional to 2,066.08, 3,099.60 and 605.20

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Solution

The fourth proportional to 2,066.08, 3,099.60 and 605.20 is: 907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066.08 : 3,099.60 = 605.20 : x
  2. Step 2: Convert to fraction form
    2,066.08/3,099.60 = 605.20/x
  3. Step 3: Cross multiply
    2,066.08x = 3,099.60 × 605.20
  4. Step 4: Simplify right side
    2,066.08x = 1,875,877.92
  5. Step 5: Solve for x
    x = 1,875,877.92/2,066.08
  6. Step 6: Final answer
    x = 907.94

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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.