Home / 4,724.26-7,086.40-1,261.50

Finding the Fourth Proportional to 4,724.26, 7,086.40 and 1,261.50

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Solution

The fourth proportional to 4,724.26, 7,086.40 and 1,261.50 is: 1,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.26 : 7,086.40 = 1,261.50 : x
  2. Step 2: Convert to fraction form
    4,724.26/7,086.40 = 1,261.50/x
  3. Step 3: Cross multiply
    4,724.26x = 7,086.40 × 1,261.50
  4. Step 4: Simplify right side
    4,724.26x = 8,939,493.60
  5. Step 5: Solve for x
    x = 8,939,493.60/4,724.26
  6. Step 6: Final answer
    x = 1,892.25

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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.