Home / 5,314.34-7,969.05-1,615.74

Finding the Fourth Proportional to 5,314.34, 7,969.05 and 1,615.74

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Solution

The fourth proportional to 5,314.34, 7,969.05 and 1,615.74 is: 2,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.34 : 7,969.05 = 1,615.74 : x
  2. Step 2: Convert to fraction form
    5,314.34/7,969.05 = 1,615.74/x
  3. Step 3: Cross multiply
    5,314.34x = 7,969.05 × 1,615.74
  4. Step 4: Simplify right side
    5,314.34x = 12,875,912.85
  5. Step 5: Solve for x
    x = 12,875,912.85/5,314.34
  6. Step 6: Final answer
    x = 2,422.86

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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.