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Finding the Fourth Proportional to 3,062.76, 4,220.56 and 2,176.08

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Solution

The fourth proportional to 3,062.76, 4,220.56 and 2,176.08 is: 2,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.76 : 4,220.56 = 2,176.08 : x
  2. Step 2: Convert to fraction form
    3,062.76/4,220.56 = 2,176.08/x
  3. Step 3: Cross multiply
    3,062.76x = 4,220.56 × 2,176.08
  4. Step 4: Simplify right side
    3,062.76x = 9,184,250.86
  5. Step 5: Solve for x
    x = 9,184,250.86/3,062.76
  6. Step 6: Final answer
    x = 2,998.69

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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.