Home / 2,572.56-3,857.49-1,272.51

Finding the Fourth Proportional to 2,572.56, 3,857.49 and 1,272.51

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Solution

The fourth proportional to 2,572.56, 3,857.49 and 1,272.51 is: 1,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.56 : 3,857.49 = 1,272.51 : x
  2. Step 2: Convert to fraction form
    2,572.56/3,857.49 = 1,272.51/x
  3. Step 3: Cross multiply
    2,572.56x = 3,857.49 × 1,272.51
  4. Step 4: Simplify right side
    2,572.56x = 4,908,694.60
  5. Step 5: Solve for x
    x = 4,908,694.60/2,572.56
  6. Step 6: Final answer
    x = 1,908.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.