Home / 3,783.18-5,219.28-2,291.22

Finding the Fourth Proportional to 3,783.18, 5,219.28 and 2,291.22

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Solution

The fourth proportional to 3,783.18, 5,219.28 and 2,291.22 is: 3,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.18 : 5,219.28 = 2,291.22 : x
  2. Step 2: Convert to fraction form
    3,783.18/5,219.28 = 2,291.22/x
  3. Step 3: Cross multiply
    3,783.18x = 5,219.28 × 2,291.22
  4. Step 4: Simplify right side
    3,783.18x = 11,958,518.72
  5. Step 5: Solve for x
    x = 11,958,518.72/3,783.18
  6. Step 6: Final answer
    x = 3,160.97

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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.