Home / 2,518.47-3,772.85-1,220.85

Finding the Fourth Proportional to 2,518.47, 3,772.85 and 1,220.85

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Solution

The fourth proportional to 2,518.47, 3,772.85 and 1,220.85 is: 1,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.47 : 3,772.85 = 1,220.85 : x
  2. Step 2: Convert to fraction form
    2,518.47/3,772.85 = 1,220.85/x
  3. Step 3: Cross multiply
    2,518.47x = 3,772.85 × 1,220.85
  4. Step 4: Simplify right side
    2,518.47x = 4,606,077.82
  5. Step 5: Solve for x
    x = 4,606,077.82/2,518.47
  6. Step 6: Final answer
    x = 1,828.92

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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.