Home / 5,411.26-8,117.69-1,712.65

Finding the Fourth Proportional to 5,411.26, 8,117.69 and 1,712.65

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Solution

The fourth proportional to 5,411.26, 8,117.69 and 1,712.65 is: 2,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.26 : 8,117.69 = 1,712.65 : x
  2. Step 2: Convert to fraction form
    5,411.26/8,117.69 = 1,712.65/x
  3. Step 3: Cross multiply
    5,411.26x = 8,117.69 × 1,712.65
  4. Step 4: Simplify right side
    5,411.26x = 13,902,761.78
  5. Step 5: Solve for x
    x = 13,902,761.78/5,411.26
  6. Step 6: Final answer
    x = 2,569.23

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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.