Home / 2,570.04-3,857.76-1,272.48

Finding the Fourth Proportional to 2,570.04, 3,857.76 and 1,272.48

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Solution

The fourth proportional to 2,570.04, 3,857.76 and 1,272.48 is: 1,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.04 : 3,857.76 = 1,272.48 : x
  2. Step 2: Convert to fraction form
    2,570.04/3,857.76 = 1,272.48/x
  3. Step 3: Cross multiply
    2,570.04x = 3,857.76 × 1,272.48
  4. Step 4: Simplify right side
    2,570.04x = 4,908,922.44
  5. Step 5: Solve for x
    x = 4,908,922.44/2,570.04
  6. Step 6: Final answer
    x = 1,910.06

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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.