Home / 3,956.12-5,459.47-2,187.77

Finding the Fourth Proportional to 3,956.12, 5,459.47 and 2,187.77

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Solution

The fourth proportional to 3,956.12, 5,459.47 and 2,187.77 is: 3,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.12 : 5,459.47 = 2,187.77 : x
  2. Step 2: Convert to fraction form
    3,956.12/5,459.47 = 2,187.77/x
  3. Step 3: Cross multiply
    3,956.12x = 5,459.47 × 2,187.77
  4. Step 4: Simplify right side
    3,956.12x = 11,944,064.68
  5. Step 5: Solve for x
    x = 11,944,064.68/3,956.12
  6. Step 6: Final answer
    x = 3,019.14

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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.