Home / 3,855.56-5,320.55-2,176.94

Finding the Fourth Proportional to 3,855.56, 5,320.55 and 2,176.94

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Solution

The fourth proportional to 3,855.56, 5,320.55 and 2,176.94 is: 3,004.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.56 : 5,320.55 = 2,176.94 : x
  2. Step 2: Convert to fraction form
    3,855.56/5,320.55 = 2,176.94/x
  3. Step 3: Cross multiply
    3,855.56x = 5,320.55 × 2,176.94
  4. Step 4: Simplify right side
    3,855.56x = 11,582,536.86
  5. Step 5: Solve for x
    x = 11,582,536.86/3,855.56
  6. Step 6: Final answer
    x = 3,004.12

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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.