Home / 2,861.48-3,948.81-1,682.66

Finding the Fourth Proportional to 2,861.48, 3,948.81 and 1,682.66

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Solution

The fourth proportional to 2,861.48, 3,948.81 and 1,682.66 is: 2,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.48 : 3,948.81 = 1,682.66 : x
  2. Step 2: Convert to fraction form
    2,861.48/3,948.81 = 1,682.66/x
  3. Step 3: Cross multiply
    2,861.48x = 3,948.81 × 1,682.66
  4. Step 4: Simplify right side
    2,861.48x = 6,644,504.63
  5. Step 5: Solve for x
    x = 6,644,504.63/2,861.48
  6. Step 6: Final answer
    x = 2,322.05

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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.