Home / 5,220.24-7,203.78-2,862.34

Finding the Fourth Proportional to 5,220.24, 7,203.78 and 2,862.34

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Solution

The fourth proportional to 5,220.24, 7,203.78 and 2,862.34 is: 3,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.24 : 7,203.78 = 2,862.34 : x
  2. Step 2: Convert to fraction form
    5,220.24/7,203.78 = 2,862.34/x
  3. Step 3: Cross multiply
    5,220.24x = 7,203.78 × 2,862.34
  4. Step 4: Simplify right side
    5,220.24x = 20,619,667.65
  5. Step 5: Solve for x
    x = 20,619,667.65/5,220.24
  6. Step 6: Final answer
    x = 3,949.95

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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.