Home / 3,643.94-5,029.26-2,151.92

Finding the Fourth Proportional to 3,643.94, 5,029.26 and 2,151.92

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Solution

The fourth proportional to 3,643.94, 5,029.26 and 2,151.92 is: 2,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.94 : 5,029.26 = 2,151.92 : x
  2. Step 2: Convert to fraction form
    3,643.94/5,029.26 = 2,151.92/x
  3. Step 3: Cross multiply
    3,643.94x = 5,029.26 × 2,151.92
  4. Step 4: Simplify right side
    3,643.94x = 10,822,559.55
  5. Step 5: Solve for x
    x = 10,822,559.55/3,643.94
  6. Step 6: Final answer
    x = 2,970.02

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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.