Home / 3,856.07-5,320.76-2,177.09

Finding the Fourth Proportional to 3,856.07, 5,320.76 and 2,177.09

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Solution

The fourth proportional to 3,856.07, 5,320.76 and 2,177.09 is: 3,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.07 : 5,320.76 = 2,177.09 : x
  2. Step 2: Convert to fraction form
    3,856.07/5,320.76 = 2,177.09/x
  3. Step 3: Cross multiply
    3,856.07x = 5,320.76 × 2,177.09
  4. Step 4: Simplify right side
    3,856.07x = 11,583,773.39
  5. Step 5: Solve for x
    x = 11,583,773.39/3,856.07
  6. Step 6: Final answer
    x = 3,004.04

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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.