Home / 5,220.16-7,203.92-2,862.48

Finding the Fourth Proportional to 5,220.16, 7,203.92 and 2,862.48

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Solution

The fourth proportional to 5,220.16, 7,203.92 and 2,862.48 is: 3,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.16 : 7,203.92 = 2,862.48 : x
  2. Step 2: Convert to fraction form
    5,220.16/7,203.92 = 2,862.48/x
  3. Step 3: Cross multiply
    5,220.16x = 7,203.92 × 2,862.48
  4. Step 4: Simplify right side
    5,220.16x = 20,621,076.92
  5. Step 5: Solve for x
    x = 20,621,076.92/5,220.16
  6. Step 6: Final answer
    x = 3,950.28

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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.