Home / 4,431.89-6,647.85-1,658.50

Finding the Fourth Proportional to 4,431.89, 6,647.85 and 1,658.50

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Solution

The fourth proportional to 4,431.89, 6,647.85 and 1,658.50 is: 2,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.89 : 6,647.85 = 1,658.50 : x
  2. Step 2: Convert to fraction form
    4,431.89/6,647.85 = 1,658.50/x
  3. Step 3: Cross multiply
    4,431.89x = 6,647.85 × 1,658.50
  4. Step 4: Simplify right side
    4,431.89x = 11,025,456.64
  5. Step 5: Solve for x
    x = 11,025,456.64/4,431.89
  6. Step 6: Final answer
    x = 2,487.76

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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.