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Finding the Fourth Proportional to 3,066.48, 4,600.36 and 1,978.48

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Solution

The fourth proportional to 3,066.48, 4,600.36 and 1,978.48 is: 2,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.48 : 4,600.36 = 1,978.48 : x
  2. Step 2: Convert to fraction form
    3,066.48/4,600.36 = 1,978.48/x
  3. Step 3: Cross multiply
    3,066.48x = 4,600.36 × 1,978.48
  4. Step 4: Simplify right side
    3,066.48x = 9,101,720.25
  5. Step 5: Solve for x
    x = 9,101,720.25/3,066.48
  6. Step 6: Final answer
    x = 2,968.13

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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.