Home / 4,619.61-6,929.42-2,156.15

Finding the Fourth Proportional to 4,619.61, 6,929.42 and 2,156.15

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Solution

The fourth proportional to 4,619.61, 6,929.42 and 2,156.15 is: 3,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.61 : 6,929.42 = 2,156.15 : x
  2. Step 2: Convert to fraction form
    4,619.61/6,929.42 = 2,156.15/x
  3. Step 3: Cross multiply
    4,619.61x = 6,929.42 × 2,156.15
  4. Step 4: Simplify right side
    4,619.61x = 14,940,868.93
  5. Step 5: Solve for x
    x = 14,940,868.93/4,619.61
  6. Step 6: Final answer
    x = 3,234.23

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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.