Home / 3,954.10-5,927.46-1,978.51

Finding the Fourth Proportional to 3,954.10, 5,927.46 and 1,978.51

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Solution

The fourth proportional to 3,954.10, 5,927.46 and 1,978.51 is: 2,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.10 : 5,927.46 = 1,978.51 : x
  2. Step 2: Convert to fraction form
    3,954.10/5,927.46 = 1,978.51/x
  3. Step 3: Cross multiply
    3,954.10x = 5,927.46 × 1,978.51
  4. Step 4: Simplify right side
    3,954.10x = 11,727,538.88
  5. Step 5: Solve for x
    x = 11,727,538.88/3,954.10
  6. Step 6: Final answer
    x = 2,965.92

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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.