Home / 3,968.70-5,954.20-1,776.91

Finding the Fourth Proportional to 3,968.70, 5,954.20 and 1,776.91

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Solution

The fourth proportional to 3,968.70, 5,954.20 and 1,776.91 is: 2,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.70 : 5,954.20 = 1,776.91 : x
  2. Step 2: Convert to fraction form
    3,968.70/5,954.20 = 1,776.91/x
  3. Step 3: Cross multiply
    3,968.70x = 5,954.20 × 1,776.91
  4. Step 4: Simplify right side
    3,968.70x = 10,580,091.10
  5. Step 5: Solve for x
    x = 10,580,091.10/3,968.70
  6. Step 6: Final answer
    x = 2,665.89

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1.5x scale

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.