Home / 5,110.40-7,658.98-2,145.48

Finding the Fourth Proportional to 5,110.40, 7,658.98 and 2,145.48

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Solution

The fourth proportional to 5,110.40, 7,658.98 and 2,145.48 is: 3,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.40 : 7,658.98 = 2,145.48 : x
  2. Step 2: Convert to fraction form
    5,110.40/7,658.98 = 2,145.48/x
  3. Step 3: Cross multiply
    5,110.40x = 7,658.98 × 2,145.48
  4. Step 4: Simplify right side
    5,110.40x = 16,432,188.41
  5. Step 5: Solve for x
    x = 16,432,188.41/5,110.40
  6. Step 6: Final answer
    x = 3,215.44

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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.