Home / 3,956.45-5,459.81-2,278.53

Finding the Fourth Proportional to 3,956.45, 5,459.81 and 2,278.53

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Solution

The fourth proportional to 3,956.45, 5,459.81 and 2,278.53 is: 3,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.45 : 5,459.81 = 2,278.53 : x
  2. Step 2: Convert to fraction form
    3,956.45/5,459.81 = 2,278.53/x
  3. Step 3: Cross multiply
    3,956.45x = 5,459.81 × 2,278.53
  4. Step 4: Simplify right side
    3,956.45x = 12,440,329.49
  5. Step 5: Solve for x
    x = 12,440,329.49/3,956.45
  6. Step 6: Final answer
    x = 3,144.32

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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.