Home / 3,718.31-5,131.70-2,226.23

Finding the Fourth Proportional to 3,718.31, 5,131.70 and 2,226.23

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Solution

The fourth proportional to 3,718.31, 5,131.70 and 2,226.23 is: 3,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.31 : 5,131.70 = 2,226.23 : x
  2. Step 2: Convert to fraction form
    3,718.31/5,131.70 = 2,226.23/x
  3. Step 3: Cross multiply
    3,718.31x = 5,131.70 × 2,226.23
  4. Step 4: Simplify right side
    3,718.31x = 11,424,307.70
  5. Step 5: Solve for x
    x = 11,424,307.70/3,718.31
  6. Step 6: Final answer
    x = 3,072.45

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Double scale
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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.