Home / 7,607.18-11,415.36-2,680.50

Finding the Fourth Proportional to 7,607.18, 11,415.36 and 2,680.50

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Solution

The fourth proportional to 7,607.18, 11,415.36 and 2,680.50 is: 4,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.18 : 11,415.36 = 2,680.50 : x
  2. Step 2: Convert to fraction form
    7,607.18/11,415.36 = 2,680.50/x
  3. Step 3: Cross multiply
    7,607.18x = 11,415.36 × 2,680.50
  4. Step 4: Simplify right side
    7,607.18x = 30,598,872.48
  5. Step 5: Solve for x
    x = 30,598,872.48/7,607.18
  6. Step 6: Final answer
    x = 4,022.37

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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.