Home / 3,783.34-5,221.04-2,189.98

Finding the Fourth Proportional to 3,783.34, 5,221.04 and 2,189.98

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Solution

The fourth proportional to 3,783.34, 5,221.04 and 2,189.98 is: 3,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.34 : 5,221.04 = 2,189.98 : x
  2. Step 2: Convert to fraction form
    3,783.34/5,221.04 = 2,189.98/x
  3. Step 3: Cross multiply
    3,783.34x = 5,221.04 × 2,189.98
  4. Step 4: Simplify right side
    3,783.34x = 11,433,973.18
  5. Step 5: Solve for x
    x = 11,433,973.18/3,783.34
  6. Step 6: Final answer
    x = 3,022.19

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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.