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Finding the Fourth Proportional to 2,670.86, 3,685.77 and 1,551.85

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Solution

The fourth proportional to 2,670.86, 3,685.77 and 1,551.85 is: 2,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.86 : 3,685.77 = 1,551.85 : x
  2. Step 2: Convert to fraction form
    2,670.86/3,685.77 = 1,551.85/x
  3. Step 3: Cross multiply
    2,670.86x = 3,685.77 × 1,551.85
  4. Step 4: Simplify right side
    2,670.86x = 5,719,762.17
  5. Step 5: Solve for x
    x = 5,719,762.17/2,670.86
  6. Step 6: Final answer
    x = 2,141.54

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Why These Related Problems?

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