Home / 3,688.42-5,090.14-2,009.75

Finding the Fourth Proportional to 3,688.42, 5,090.14 and 2,009.75

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Solution

The fourth proportional to 3,688.42, 5,090.14 and 2,009.75 is: 2,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.42 : 5,090.14 = 2,009.75 : x
  2. Step 2: Convert to fraction form
    3,688.42/5,090.14 = 2,009.75/x
  3. Step 3: Cross multiply
    3,688.42x = 5,090.14 × 2,009.75
  4. Step 4: Simplify right side
    3,688.42x = 10,229,885.93
  5. Step 5: Solve for x
    x = 10,229,885.93/3,688.42
  6. Step 6: Final answer
    x = 2,773.51

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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.