Home / 2,178.15-3,265.12-1,395.96

Finding the Fourth Proportional to 2,178.15, 3,265.12 and 1,395.96

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Solution

The fourth proportional to 2,178.15, 3,265.12 and 1,395.96 is: 2,092.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.15 : 3,265.12 = 1,395.96 : x
  2. Step 2: Convert to fraction form
    2,178.15/3,265.12 = 1,395.96/x
  3. Step 3: Cross multiply
    2,178.15x = 3,265.12 × 1,395.96
  4. Step 4: Simplify right side
    2,178.15x = 4,557,976.92
  5. Step 5: Solve for x
    x = 4,557,976.92/2,178.15
  6. Step 6: Final answer
    x = 2,092.59

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1.5x scale

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.