Home / 3,855.05-5,319.64-2,176.53

Finding the Fourth Proportional to 3,855.05, 5,319.64 and 2,176.53

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Solution

The fourth proportional to 3,855.05, 5,319.64 and 2,176.53 is: 3,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.05 : 5,319.64 = 2,176.53 : x
  2. Step 2: Convert to fraction form
    3,855.05/5,319.64 = 2,176.53/x
  3. Step 3: Cross multiply
    3,855.05x = 5,319.64 × 2,176.53
  4. Step 4: Simplify right side
    3,855.05x = 11,578,356.05
  5. Step 5: Solve for x
    x = 11,578,356.05/3,855.05
  6. Step 6: Final answer
    x = 3,003.43

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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.