Home / 2,380.90-3,285.66-1,436.74

Finding the Fourth Proportional to 2,380.90, 3,285.66 and 1,436.74

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Solution

The fourth proportional to 2,380.90, 3,285.66 and 1,436.74 is: 1,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.90 : 3,285.66 = 1,436.74 : x
  2. Step 2: Convert to fraction form
    2,380.90/3,285.66 = 1,436.74/x
  3. Step 3: Cross multiply
    2,380.90x = 3,285.66 × 1,436.74
  4. Step 4: Simplify right side
    2,380.90x = 4,720,639.15
  5. Step 5: Solve for x
    x = 4,720,639.15/2,380.90
  6. Step 6: Final answer
    x = 1,982.71

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1.5x scale

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.