Home / 5,311.06-7,966.62-1,415.48

Finding the Fourth Proportional to 5,311.06, 7,966.62 and 1,415.48

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Solution

The fourth proportional to 5,311.06, 7,966.62 and 1,415.48 is: 2,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.06 : 7,966.62 = 1,415.48 : x
  2. Step 2: Convert to fraction form
    5,311.06/7,966.62 = 1,415.48/x
  3. Step 3: Cross multiply
    5,311.06x = 7,966.62 × 1,415.48
  4. Step 4: Simplify right side
    5,311.06x = 11,276,551.44
  5. Step 5: Solve for x
    x = 11,276,551.44/5,311.06
  6. Step 6: Final answer
    x = 2,123.22

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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.