Home / 2,220.75-3,331.16-577.32

Finding the Fourth Proportional to 2,220.75, 3,331.16 and 577.32

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Solution

The fourth proportional to 2,220.75, 3,331.16 and 577.32 is: 865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.75 : 3,331.16 = 577.32 : x
  2. Step 2: Convert to fraction form
    2,220.75/3,331.16 = 577.32/x
  3. Step 3: Cross multiply
    2,220.75x = 3,331.16 × 577.32
  4. Step 4: Simplify right side
    2,220.75x = 1,923,145.29
  5. Step 5: Solve for x
    x = 1,923,145.29/2,220.75
  6. Step 6: Final answer
    x = 865.99

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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.