Home / 5,220.60-7,203.84-2,982.24

Finding the Fourth Proportional to 5,220.60, 7,203.84 and 2,982.24

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Solution

The fourth proportional to 5,220.60, 7,203.84 and 2,982.24 is: 4,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.60 : 7,203.84 = 2,982.24 : x
  2. Step 2: Convert to fraction form
    5,220.60/7,203.84 = 2,982.24/x
  3. Step 3: Cross multiply
    5,220.60x = 7,203.84 × 2,982.24
  4. Step 4: Simplify right side
    5,220.60x = 21,483,579.80
  5. Step 5: Solve for x
    x = 21,483,579.80/5,220.60
  6. Step 6: Final answer
    x = 4,115.16

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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.