Home / 3,854.97-5,783.40-1,257.84

Finding the Fourth Proportional to 3,854.97, 5,783.40 and 1,257.84

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Solution

The fourth proportional to 3,854.97, 5,783.40 and 1,257.84 is: 1,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.97 : 5,783.40 = 1,257.84 : x
  2. Step 2: Convert to fraction form
    3,854.97/5,783.40 = 1,257.84/x
  3. Step 3: Cross multiply
    3,854.97x = 5,783.40 × 1,257.84
  4. Step 4: Simplify right side
    3,854.97x = 7,274,591.86
  5. Step 5: Solve for x
    x = 7,274,591.86/3,854.97
  6. Step 6: Final answer
    x = 1,887.07

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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.