Home / 3,543.45-4,889.97-2,127.21

Finding the Fourth Proportional to 3,543.45, 4,889.97 and 2,127.21

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Solution

The fourth proportional to 3,543.45, 4,889.97 and 2,127.21 is: 2,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.45 : 4,889.97 = 2,127.21 : x
  2. Step 2: Convert to fraction form
    3,543.45/4,889.97 = 2,127.21/x
  3. Step 3: Cross multiply
    3,543.45x = 4,889.97 × 2,127.21
  4. Step 4: Simplify right side
    3,543.45x = 10,401,993.08
  5. Step 5: Solve for x
    x = 10,401,993.08/3,543.45
  6. Step 6: Final answer
    x = 2,935.56

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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.