Home / 2,380.75-3,285.48-1,332.79

Finding the Fourth Proportional to 2,380.75, 3,285.48 and 1,332.79

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Solution

The fourth proportional to 2,380.75, 3,285.48 and 1,332.79 is: 1,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.75 : 3,285.48 = 1,332.79 : x
  2. Step 2: Convert to fraction form
    2,380.75/3,285.48 = 1,332.79/x
  3. Step 3: Cross multiply
    2,380.75x = 3,285.48 × 1,332.79
  4. Step 4: Simplify right side
    2,380.75x = 4,378,854.89
  5. Step 5: Solve for x
    x = 4,378,854.89/2,380.75
  6. Step 6: Final answer
    x = 1,839.28

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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.