Home / 5,287.86-7,297.36-2,930.09

Finding the Fourth Proportional to 5,287.86, 7,297.36 and 2,930.09

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Solution

The fourth proportional to 5,287.86, 7,297.36 and 2,930.09 is: 4,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.86 : 7,297.36 = 2,930.09 : x
  2. Step 2: Convert to fraction form
    5,287.86/7,297.36 = 2,930.09/x
  3. Step 3: Cross multiply
    5,287.86x = 7,297.36 × 2,930.09
  4. Step 4: Simplify right side
    5,287.86x = 21,381,877.75
  5. Step 5: Solve for x
    x = 21,381,877.75/5,287.86
  6. Step 6: Final answer
    x = 4,043.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.