Home / 4,724.81-7,086.40-1,261.25

Finding the Fourth Proportional to 4,724.81, 7,086.40 and 1,261.25

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Solution

The fourth proportional to 4,724.81, 7,086.40 and 1,261.25 is: 1,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.81 : 7,086.40 = 1,261.25 : x
  2. Step 2: Convert to fraction form
    4,724.81/7,086.40 = 1,261.25/x
  3. Step 3: Cross multiply
    4,724.81x = 7,086.40 × 1,261.25
  4. Step 4: Simplify right side
    4,724.81x = 8,937,722
  5. Step 5: Solve for x
    x = 8,937,722/4,724.81
  6. Step 6: Final answer
    x = 1,891.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.