Home / 2,965.47-4,086.55-2,772.75

Finding the Fourth Proportional to 2,965.47, 4,086.55 and 2,772.75

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Solution

The fourth proportional to 2,965.47, 4,086.55 and 2,772.75 is: 3,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.47 : 4,086.55 = 2,772.75 : x
  2. Step 2: Convert to fraction form
    2,965.47/4,086.55 = 2,772.75/x
  3. Step 3: Cross multiply
    2,965.47x = 4,086.55 × 2,772.75
  4. Step 4: Simplify right side
    2,965.47x = 11,330,981.51
  5. Step 5: Solve for x
    x = 11,330,981.51/2,965.47
  6. Step 6: Final answer
    x = 3,820.97

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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.