Home / 3,688.47-5,090.11-2,009.88

Finding the Fourth Proportional to 3,688.47, 5,090.11 and 2,009.88

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Solution

The fourth proportional to 3,688.47, 5,090.11 and 2,009.88 is: 2,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.47 : 5,090.11 = 2,009.88 : x
  2. Step 2: Convert to fraction form
    3,688.47/5,090.11 = 2,009.88/x
  3. Step 3: Cross multiply
    3,688.47x = 5,090.11 × 2,009.88
  4. Step 4: Simplify right side
    3,688.47x = 10,230,505.26
  5. Step 5: Solve for x
    x = 10,230,505.26/3,688.47
  6. Step 6: Final answer
    x = 2,773.64

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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.