Home / 3,715.41-5,127.36-2,143.60

Finding the Fourth Proportional to 3,715.41, 5,127.36 and 2,143.60

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Solution

The fourth proportional to 3,715.41, 5,127.36 and 2,143.60 is: 2,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.41 : 5,127.36 = 2,143.60 : x
  2. Step 2: Convert to fraction form
    3,715.41/5,127.36 = 2,143.60/x
  3. Step 3: Cross multiply
    3,715.41x = 5,127.36 × 2,143.60
  4. Step 4: Simplify right side
    3,715.41x = 10,991,008.90
  5. Step 5: Solve for x
    x = 10,991,008.90/3,715.41
  6. Step 6: Final answer
    x = 2,958.22

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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.