Home / 3,908.70-5,862.33-1,311.66

Finding the Fourth Proportional to 3,908.70, 5,862.33 and 1,311.66

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Solution

The fourth proportional to 3,908.70, 5,862.33 and 1,311.66 is: 1,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.70 : 5,862.33 = 1,311.66 : x
  2. Step 2: Convert to fraction form
    3,908.70/5,862.33 = 1,311.66/x
  3. Step 3: Cross multiply
    3,908.70x = 5,862.33 × 1,311.66
  4. Step 4: Simplify right side
    3,908.70x = 7,689,383.77
  5. Step 5: Solve for x
    x = 7,689,383.77/3,908.70
  6. Step 6: Final answer
    x = 1,967.25

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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.