Home / 5,281.06-7,920.51-1,817.54

Finding the Fourth Proportional to 5,281.06, 7,920.51 and 1,817.54

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Solution

The fourth proportional to 5,281.06, 7,920.51 and 1,817.54 is: 2,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.06 : 7,920.51 = 1,817.54 : x
  2. Step 2: Convert to fraction form
    5,281.06/7,920.51 = 1,817.54/x
  3. Step 3: Cross multiply
    5,281.06x = 7,920.51 × 1,817.54
  4. Step 4: Simplify right side
    5,281.06x = 14,395,843.75
  5. Step 5: Solve for x
    x = 14,395,843.75/5,281.06
  6. Step 6: Final answer
    x = 2,725.94

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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.