Home / 5,015.45-6,920.91-2,777.29

Finding the Fourth Proportional to 5,015.45, 6,920.91 and 2,777.29

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Solution

The fourth proportional to 5,015.45, 6,920.91 and 2,777.29 is: 3,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.45 : 6,920.91 = 2,777.29 : x
  2. Step 2: Convert to fraction form
    5,015.45/6,920.91 = 2,777.29/x
  3. Step 3: Cross multiply
    5,015.45x = 6,920.91 × 2,777.29
  4. Step 4: Simplify right side
    5,015.45x = 19,221,356.83
  5. Step 5: Solve for x
    x = 19,221,356.83/5,015.45
  6. Step 6: Final answer
    x = 3,832.43

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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.