Home / 2,177.80-3,264.55-1,395.58

Finding the Fourth Proportional to 2,177.80, 3,264.55 and 1,395.58

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Solution

The fourth proportional to 2,177.80, 3,264.55 and 1,395.58 is: 2,091.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.80 : 3,264.55 = 1,395.58 : x
  2. Step 2: Convert to fraction form
    2,177.80/3,264.55 = 1,395.58/x
  3. Step 3: Cross multiply
    2,177.80x = 3,264.55 × 1,395.58
  4. Step 4: Simplify right side
    2,177.80x = 4,555,940.69
  5. Step 5: Solve for x
    x = 4,555,940.69/2,177.80
  6. Step 6: Final answer
    x = 2,091.99

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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.