Home / 5,407.91-8,108.82-1,711.07

Finding the Fourth Proportional to 5,407.91, 8,108.82 and 1,711.07

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Solution

The fourth proportional to 5,407.91, 8,108.82 and 1,711.07 is: 2,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.91 : 8,108.82 = 1,711.07 : x
  2. Step 2: Convert to fraction form
    5,407.91/8,108.82 = 1,711.07/x
  3. Step 3: Cross multiply
    5,407.91x = 8,108.82 × 1,711.07
  4. Step 4: Simplify right side
    5,407.91x = 13,874,718.09
  5. Step 5: Solve for x
    x = 13,874,718.09/5,407.91
  6. Step 6: Final answer
    x = 2,565.64

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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.