Home / 1,911.26-2,866.80-524.58

Finding the Fourth Proportional to 1,911.26, 2,866.80 and 524.58

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Solution

The fourth proportional to 1,911.26, 2,866.80 and 524.58 is: 786.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.26 : 2,866.80 = 524.58 : x
  2. Step 2: Convert to fraction form
    1,911.26/2,866.80 = 524.58/x
  3. Step 3: Cross multiply
    1,911.26x = 2,866.80 × 524.58
  4. Step 4: Simplify right side
    1,911.26x = 1,503,865.94
  5. Step 5: Solve for x
    x = 1,503,865.94/1,911.26
  6. Step 6: Final answer
    x = 786.85

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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.