Home / 5,311.71-7,968.75-1,563.59

Finding the Fourth Proportional to 5,311.71, 7,968.75 and 1,563.59

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Solution

The fourth proportional to 5,311.71, 7,968.75 and 1,563.59 is: 2,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.71 : 7,968.75 = 1,563.59 : x
  2. Step 2: Convert to fraction form
    5,311.71/7,968.75 = 1,563.59/x
  3. Step 3: Cross multiply
    5,311.71x = 7,968.75 × 1,563.59
  4. Step 4: Simplify right side
    5,311.71x = 12,459,817.97
  5. Step 5: Solve for x
    x = 12,459,817.97/5,311.71
  6. Step 6: Final answer
    x = 2,345.73

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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.