Home / 2,380.84-3,285.61-1,332.90

Finding the Fourth Proportional to 2,380.84, 3,285.61 and 1,332.90

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Solution

The fourth proportional to 2,380.84, 3,285.61 and 1,332.90 is: 1,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.84 : 3,285.61 = 1,332.90 : x
  2. Step 2: Convert to fraction form
    2,380.84/3,285.61 = 1,332.90/x
  3. Step 3: Cross multiply
    2,380.84x = 3,285.61 × 1,332.90
  4. Step 4: Simplify right side
    2,380.84x = 4,379,389.57
  5. Step 5: Solve for x
    x = 4,379,389.57/2,380.84
  6. Step 6: Final answer
    x = 1,839.43

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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.