Home / 5,261.81-7,891.63-1,974.83

Finding the Fourth Proportional to 5,261.81, 7,891.63 and 1,974.83

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Solution

The fourth proportional to 5,261.81, 7,891.63 and 1,974.83 is: 2,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.81 : 7,891.63 = 1,974.83 : x
  2. Step 2: Convert to fraction form
    5,261.81/7,891.63 = 1,974.83/x
  3. Step 3: Cross multiply
    5,261.81x = 7,891.63 × 1,974.83
  4. Step 4: Simplify right side
    5,261.81x = 15,584,583.28
  5. Step 5: Solve for x
    x = 15,584,583.28/5,261.81
  6. Step 6: Final answer
    x = 2,961.83

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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.