Home / 7,128.45-10,697.31-3,232.89

Finding the Fourth Proportional to 7,128.45, 10,697.31 and 3,232.89

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Solution

The fourth proportional to 7,128.45, 10,697.31 and 3,232.89 is: 4,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.45 : 10,697.31 = 3,232.89 : x
  2. Step 2: Convert to fraction form
    7,128.45/10,697.31 = 3,232.89/x
  3. Step 3: Cross multiply
    7,128.45x = 10,697.31 × 3,232.89
  4. Step 4: Simplify right side
    7,128.45x = 34,583,226.53
  5. Step 5: Solve for x
    x = 34,583,226.53/7,128.45
  6. Step 6: Final answer
    x = 4,851.44

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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.