Home / 2,945.44-4,066.96-2,207.76

Finding the Fourth Proportional to 2,945.44, 4,066.96 and 2,207.76

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Solution

The fourth proportional to 2,945.44, 4,066.96 and 2,207.76 is: 3,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.44 : 4,066.96 = 2,207.76 : x
  2. Step 2: Convert to fraction form
    2,945.44/4,066.96 = 2,207.76/x
  3. Step 3: Cross multiply
    2,945.44x = 4,066.96 × 2,207.76
  4. Step 4: Simplify right side
    2,945.44x = 8,978,871.61
  5. Step 5: Solve for x
    x = 8,978,871.61/2,945.44
  6. Step 6: Final answer
    x = 3,048.40

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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.