Home / 5,015.06-6,920.97-2,776.78

Finding the Fourth Proportional to 5,015.06, 6,920.97 and 2,776.78

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Solution

The fourth proportional to 5,015.06, 6,920.97 and 2,776.78 is: 3,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.06 : 6,920.97 = 2,776.78 : x
  2. Step 2: Convert to fraction form
    5,015.06/6,920.97 = 2,776.78/x
  3. Step 3: Cross multiply
    5,015.06x = 6,920.97 × 2,776.78
  4. Step 4: Simplify right side
    5,015.06x = 19,218,004.01
  5. Step 5: Solve for x
    x = 19,218,004.01/5,015.06
  6. Step 6: Final answer
    x = 3,832.06

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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.