Home / 5,621.88-7,758.18-3,069.66

Finding the Fourth Proportional to 5,621.88, 7,758.18 and 3,069.66

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Solution

The fourth proportional to 5,621.88, 7,758.18 and 3,069.66 is: 4,236.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.88 : 7,758.18 = 3,069.66 : x
  2. Step 2: Convert to fraction form
    5,621.88/7,758.18 = 3,069.66/x
  3. Step 3: Cross multiply
    5,621.88x = 7,758.18 × 3,069.66
  4. Step 4: Simplify right side
    5,621.88x = 23,814,974.82
  5. Step 5: Solve for x
    x = 23,814,974.82/5,621.88
  6. Step 6: Final answer
    x = 4,236.12

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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.