Home / 3,818.66-5,270.08-2,140.04

Finding the Fourth Proportional to 3,818.66, 5,270.08 and 2,140.04

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Solution

The fourth proportional to 3,818.66, 5,270.08 and 2,140.04 is: 2,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.66 : 5,270.08 = 2,140.04 : x
  2. Step 2: Convert to fraction form
    3,818.66/5,270.08 = 2,140.04/x
  3. Step 3: Cross multiply
    3,818.66x = 5,270.08 × 2,140.04
  4. Step 4: Simplify right side
    3,818.66x = 11,278,182.00
  5. Step 5: Solve for x
    x = 11,278,182.00/3,818.66
  6. Step 6: Final answer
    x = 2,953.44

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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.