Home / 3,927.29-5,419.33-2,158.83

Finding the Fourth Proportional to 3,927.29, 5,419.33 and 2,158.83

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Solution

The fourth proportional to 3,927.29, 5,419.33 and 2,158.83 is: 2,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.29 : 5,419.33 = 2,158.83 : x
  2. Step 2: Convert to fraction form
    3,927.29/5,419.33 = 2,158.83/x
  3. Step 3: Cross multiply
    3,927.29x = 5,419.33 × 2,158.83
  4. Step 4: Simplify right side
    3,927.29x = 11,699,406.79
  5. Step 5: Solve for x
    x = 11,699,406.79/3,927.29
  6. Step 6: Final answer
    x = 2,979.01

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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.