Home / 3,968.90-5,954.78-2,412.08

Finding the Fourth Proportional to 3,968.90, 5,954.78 and 2,412.08

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Solution

The fourth proportional to 3,968.90, 5,954.78 and 2,412.08 is: 3,618.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.90 : 5,954.78 = 2,412.08 : x
  2. Step 2: Convert to fraction form
    3,968.90/5,954.78 = 2,412.08/x
  3. Step 3: Cross multiply
    3,968.90x = 5,954.78 × 2,412.08
  4. Step 4: Simplify right side
    3,968.90x = 14,363,405.74
  5. Step 5: Solve for x
    x = 14,363,405.74/3,968.90
  6. Step 6: Final answer
    x = 3,618.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.