Home / 5,554.31-8,331.27-2,220.90

Finding the Fourth Proportional to 5,554.31, 8,331.27 and 2,220.90

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Solution

The fourth proportional to 5,554.31, 8,331.27 and 2,220.90 is: 3,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.31 : 8,331.27 = 2,220.90 : x
  2. Step 2: Convert to fraction form
    5,554.31/8,331.27 = 2,220.90/x
  3. Step 3: Cross multiply
    5,554.31x = 8,331.27 × 2,220.90
  4. Step 4: Simplify right side
    5,554.31x = 18,502,917.54
  5. Step 5: Solve for x
    x = 18,502,917.54/5,554.31
  6. Step 6: Final answer
    x = 3,331.28

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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.