Home / 3,960-5,459.83-2,541.18

Finding the Fourth Proportional to 3,960, 5,459.83 and 2,541.18

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Solution

The fourth proportional to 3,960, 5,459.83 and 2,541.18 is: 3,503.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960 : 5,459.83 = 2,541.18 : x
  2. Step 2: Convert to fraction form
    3,960/5,459.83 = 2,541.18/x
  3. Step 3: Cross multiply
    3,960x = 5,459.83 × 2,541.18
  4. Step 4: Simplify right side
    3,960x = 13,874,424.92
  5. Step 5: Solve for x
    x = 13,874,424.92/3,960
  6. Step 6: Final answer
    x = 3,503.64

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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.