Home / 2,380.80-3,285.54-1,332.84

Finding the Fourth Proportional to 2,380.80, 3,285.54 and 1,332.84

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Solution

The fourth proportional to 2,380.80, 3,285.54 and 1,332.84 is: 1,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.80 : 3,285.54 = 1,332.84 : x
  2. Step 2: Convert to fraction form
    2,380.80/3,285.54 = 1,332.84/x
  3. Step 3: Cross multiply
    2,380.80x = 3,285.54 × 1,332.84
  4. Step 4: Simplify right side
    2,380.80x = 4,379,099.13
  5. Step 5: Solve for x
    x = 4,379,099.13/2,380.80
  6. Step 6: Final answer
    x = 1,839.34

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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.