Home / 3,688.41-5,090.16-2,009.91

Finding the Fourth Proportional to 3,688.41, 5,090.16 and 2,009.91

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Solution

The fourth proportional to 3,688.41, 5,090.16 and 2,009.91 is: 2,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.41 : 5,090.16 = 2,009.91 : x
  2. Step 2: Convert to fraction form
    3,688.41/5,090.16 = 2,009.91/x
  3. Step 3: Cross multiply
    3,688.41x = 5,090.16 × 2,009.91
  4. Step 4: Simplify right side
    3,688.41x = 10,230,753.44
  5. Step 5: Solve for x
    x = 10,230,753.44/3,688.41
  6. Step 6: Final answer
    x = 2,773.76

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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.