Home / 3,812.16-5,257.80-2,486.28

Finding the Fourth Proportional to 3,812.16, 5,257.80 and 2,486.28

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Solution

The fourth proportional to 3,812.16, 5,257.80 and 2,486.28 is: 3,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.16 : 5,257.80 = 2,486.28 : x
  2. Step 2: Convert to fraction form
    3,812.16/5,257.80 = 2,486.28/x
  3. Step 3: Cross multiply
    3,812.16x = 5,257.80 × 2,486.28
  4. Step 4: Simplify right side
    3,812.16x = 13,072,362.98
  5. Step 5: Solve for x
    x = 13,072,362.98/3,812.16
  6. Step 6: Final answer
    x = 3,429.12

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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.