Home / 3,677.12-5,074.28-1,998.51

Finding the Fourth Proportional to 3,677.12, 5,074.28 and 1,998.51

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Solution

The fourth proportional to 3,677.12, 5,074.28 and 1,998.51 is: 2,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.12 : 5,074.28 = 1,998.51 : x
  2. Step 2: Convert to fraction form
    3,677.12/5,074.28 = 1,998.51/x
  3. Step 3: Cross multiply
    3,677.12x = 5,074.28 × 1,998.51
  4. Step 4: Simplify right side
    3,677.12x = 10,140,999.32
  5. Step 5: Solve for x
    x = 10,140,999.32/3,677.12
  6. Step 6: Final answer
    x = 2,757.86

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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.