Home / 5,220.68-7,832.42-2,880.28

Finding the Fourth Proportional to 5,220.68, 7,832.42 and 2,880.28

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Solution

The fourth proportional to 5,220.68, 7,832.42 and 2,880.28 is: 4,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.68 : 7,832.42 = 2,880.28 : x
  2. Step 2: Convert to fraction form
    5,220.68/7,832.42 = 2,880.28/x
  3. Step 3: Cross multiply
    5,220.68x = 7,832.42 × 2,880.28
  4. Step 4: Simplify right side
    5,220.68x = 22,559,562.68
  5. Step 5: Solve for x
    x = 22,559,562.68/5,220.68
  6. Step 6: Final answer
    x = 4,321.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.