Home / 2,557.75-3,837.55-1,260.13

Finding the Fourth Proportional to 2,557.75, 3,837.55 and 1,260.13

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Solution

The fourth proportional to 2,557.75, 3,837.55 and 1,260.13 is: 1,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.75 : 3,837.55 = 1,260.13 : x
  2. Step 2: Convert to fraction form
    2,557.75/3,837.55 = 1,260.13/x
  3. Step 3: Cross multiply
    2,557.75x = 3,837.55 × 1,260.13
  4. Step 4: Simplify right side
    2,557.75x = 4,835,811.88
  5. Step 5: Solve for x
    x = 4,835,811.88/2,557.75
  6. Step 6: Final answer
    x = 1,890.65

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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.