Home / 3,956.02-5,459.28-2,187.56

Finding the Fourth Proportional to 3,956.02, 5,459.28 and 2,187.56

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Solution

The fourth proportional to 3,956.02, 5,459.28 and 2,187.56 is: 3,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.02 : 5,459.28 = 2,187.56 : x
  2. Step 2: Convert to fraction form
    3,956.02/5,459.28 = 2,187.56/x
  3. Step 3: Cross multiply
    3,956.02x = 5,459.28 × 2,187.56
  4. Step 4: Simplify right side
    3,956.02x = 11,942,502.56
  5. Step 5: Solve for x
    x = 11,942,502.56/3,956.02
  6. Step 6: Final answer
    x = 3,018.82

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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.