Home / 5,108.91-7,662.14-1,411.06

Finding the Fourth Proportional to 5,108.91, 7,662.14 and 1,411.06

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Solution

The fourth proportional to 5,108.91, 7,662.14 and 1,411.06 is: 2,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.91 : 7,662.14 = 1,411.06 : x
  2. Step 2: Convert to fraction form
    5,108.91/7,662.14 = 1,411.06/x
  3. Step 3: Cross multiply
    5,108.91x = 7,662.14 × 1,411.06
  4. Step 4: Simplify right side
    5,108.91x = 10,811,700.96
  5. Step 5: Solve for x
    x = 10,811,700.96/5,108.91
  6. Step 6: Final answer
    x = 2,116.25

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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.