Home / 3,688.56-5,090.28-2,009.97

Finding the Fourth Proportional to 3,688.56, 5,090.28 and 2,009.97

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Solution

The fourth proportional to 3,688.56, 5,090.28 and 2,009.97 is: 2,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.56 : 5,090.28 = 2,009.97 : x
  2. Step 2: Convert to fraction form
    3,688.56/5,090.28 = 2,009.97/x
  3. Step 3: Cross multiply
    3,688.56x = 5,090.28 × 2,009.97
  4. Step 4: Simplify right side
    3,688.56x = 10,231,310.09
  5. Step 5: Solve for x
    x = 10,231,310.09/3,688.56
  6. Step 6: Final answer
    x = 2,773.80

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1.5x scale

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.