Home / 1,977.41-2,727.60-1,180.20

Finding the Fourth Proportional to 1,977.41, 2,727.60 and 1,180.20

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Solution

The fourth proportional to 1,977.41, 2,727.60 and 1,180.20 is: 1,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.41 : 2,727.60 = 1,180.20 : x
  2. Step 2: Convert to fraction form
    1,977.41/2,727.60 = 1,180.20/x
  3. Step 3: Cross multiply
    1,977.41x = 2,727.60 × 1,180.20
  4. Step 4: Simplify right side
    1,977.41x = 3,219,113.52
  5. Step 5: Solve for x
    x = 3,219,113.52/1,977.41
  6. Step 6: Final answer
    x = 1,627.95

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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.