Home / 3,514.84-5,272.28-917.80

Finding the Fourth Proportional to 3,514.84, 5,272.28 and 917.80

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Solution

The fourth proportional to 3,514.84, 5,272.28 and 917.80 is: 1,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,514.84 : 5,272.28 = 917.80 : x
  2. Step 2: Convert to fraction form
    3,514.84/5,272.28 = 917.80/x
  3. Step 3: Cross multiply
    3,514.84x = 5,272.28 × 917.80
  4. Step 4: Simplify right side
    3,514.84x = 4,838,898.58
  5. Step 5: Solve for x
    x = 4,838,898.58/3,514.84
  6. Step 6: Final answer
    x = 1,376.71

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1.5x scale

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.