Home / 3,718.41-5,131.60-2,147.01

Finding the Fourth Proportional to 3,718.41, 5,131.60 and 2,147.01

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Solution

The fourth proportional to 3,718.41, 5,131.60 and 2,147.01 is: 2,962.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.41 : 5,131.60 = 2,147.01 : x
  2. Step 2: Convert to fraction form
    3,718.41/5,131.60 = 2,147.01/x
  3. Step 3: Cross multiply
    3,718.41x = 5,131.60 × 2,147.01
  4. Step 4: Simplify right side
    3,718.41x = 11,017,583.98
  5. Step 5: Solve for x
    x = 11,017,583.98/3,718.41
  6. Step 6: Final answer
    x = 2,962.99

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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.