Home / 3,514.87-5,272.64-917.81

Finding the Fourth Proportional to 3,514.87, 5,272.64 and 917.81

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Solution

The fourth proportional to 3,514.87, 5,272.64 and 917.81 is: 1,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,514.87 : 5,272.64 = 917.81 : x
  2. Step 2: Convert to fraction form
    3,514.87/5,272.64 = 917.81/x
  3. Step 3: Cross multiply
    3,514.87x = 5,272.64 × 917.81
  4. Step 4: Simplify right side
    3,514.87x = 4,839,281.72
  5. Step 5: Solve for x
    x = 4,839,281.72/3,514.87
  6. Step 6: Final answer
    x = 1,376.80

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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.