Home / 3,856.14-5,320.98-2,177.28

Finding the Fourth Proportional to 3,856.14, 5,320.98 and 2,177.28

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Solution

The fourth proportional to 3,856.14, 5,320.98 and 2,177.28 is: 3,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.14 : 5,320.98 = 2,177.28 : x
  2. Step 2: Convert to fraction form
    3,856.14/5,320.98 = 2,177.28/x
  3. Step 3: Cross multiply
    3,856.14x = 5,320.98 × 2,177.28
  4. Step 4: Simplify right side
    3,856.14x = 11,585,263.33
  5. Step 5: Solve for x
    x = 11,585,263.33/3,856.14
  6. Step 6: Final answer
    x = 3,004.37

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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.