Home / 5,220.03-7,203.72-2,862.15

Finding the Fourth Proportional to 5,220.03, 7,203.72 and 2,862.15

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Solution

The fourth proportional to 5,220.03, 7,203.72 and 2,862.15 is: 3,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.03 : 7,203.72 = 2,862.15 : x
  2. Step 2: Convert to fraction form
    5,220.03/7,203.72 = 2,862.15/x
  3. Step 3: Cross multiply
    5,220.03x = 7,203.72 × 2,862.15
  4. Step 4: Simplify right side
    5,220.03x = 20,618,127.20
  5. Step 5: Solve for x
    x = 20,618,127.20/5,220.03
  6. Step 6: Final answer
    x = 3,949.81

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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.