Home / 2,860.39-3,945.70-1,797.74

Finding the Fourth Proportional to 2,860.39, 3,945.70 and 1,797.74

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Solution

The fourth proportional to 2,860.39, 3,945.70 and 1,797.74 is: 2,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.39 : 3,945.70 = 1,797.74 : x
  2. Step 2: Convert to fraction form
    2,860.39/3,945.70 = 1,797.74/x
  3. Step 3: Cross multiply
    2,860.39x = 3,945.70 × 1,797.74
  4. Step 4: Simplify right side
    2,860.39x = 7,093,318.50
  5. Step 5: Solve for x
    x = 7,093,318.50/2,860.39
  6. Step 6: Final answer
    x = 2,479.85

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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.