Home / 3,621.26-4,998.52-2,129.14

Finding the Fourth Proportional to 3,621.26, 4,998.52 and 2,129.14

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Solution

The fourth proportional to 3,621.26, 4,998.52 and 2,129.14 is: 2,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.26 : 4,998.52 = 2,129.14 : x
  2. Step 2: Convert to fraction form
    3,621.26/4,998.52 = 2,129.14/x
  3. Step 3: Cross multiply
    3,621.26x = 4,998.52 × 2,129.14
  4. Step 4: Simplify right side
    3,621.26x = 10,642,548.87
  5. Step 5: Solve for x
    x = 10,642,548.87/3,621.26
  6. Step 6: Final answer
    x = 2,938.91

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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.