Home / 3,945.61-5,444.82-2,177.08

Finding the Fourth Proportional to 3,945.61, 5,444.82 and 2,177.08

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Solution

The fourth proportional to 3,945.61, 5,444.82 and 2,177.08 is: 3,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.61 : 5,444.82 = 2,177.08 : x
  2. Step 2: Convert to fraction form
    3,945.61/5,444.82 = 2,177.08/x
  3. Step 3: Cross multiply
    3,945.61x = 5,444.82 × 2,177.08
  4. Step 4: Simplify right side
    3,945.61x = 11,853,795.11
  5. Step 5: Solve for x
    x = 11,853,795.11/3,945.61
  6. Step 6: Final answer
    x = 3,004.30

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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.