Home / 1,910.57-2,865.93-523.87

Finding the Fourth Proportional to 1,910.57, 2,865.93 and 523.87

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Solution

The fourth proportional to 1,910.57, 2,865.93 and 523.87 is: 785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.57 : 2,865.93 = 523.87 : x
  2. Step 2: Convert to fraction form
    1,910.57/2,865.93 = 523.87/x
  3. Step 3: Cross multiply
    1,910.57x = 2,865.93 × 523.87
  4. Step 4: Simplify right side
    1,910.57x = 1,501,367.58
  5. Step 5: Solve for x
    x = 1,501,367.58/1,910.57
  6. Step 6: Final answer
    x = 785.82

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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.