Home / 3,688.68-5,090.42-2,010.12

Finding the Fourth Proportional to 3,688.68, 5,090.42 and 2,010.12

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Solution

The fourth proportional to 3,688.68, 5,090.42 and 2,010.12 is: 2,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.68 : 5,090.42 = 2,010.12 : x
  2. Step 2: Convert to fraction form
    3,688.68/5,090.42 = 2,010.12/x
  3. Step 3: Cross multiply
    3,688.68x = 5,090.42 × 2,010.12
  4. Step 4: Simplify right side
    3,688.68x = 10,232,355.05
  5. Step 5: Solve for x
    x = 10,232,355.05/3,688.68
  6. Step 6: Final answer
    x = 2,773.99

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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.