Home / 1,292.76-1,939.95-523.26

Finding the Fourth Proportional to 1,292.76, 1,939.95 and 523.26

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Solution

The fourth proportional to 1,292.76, 1,939.95 and 523.26 is: 785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.76 : 1,939.95 = 523.26 : x
  2. Step 2: Convert to fraction form
    1,292.76/1,939.95 = 523.26/x
  3. Step 3: Cross multiply
    1,292.76x = 1,939.95 × 523.26
  4. Step 4: Simplify right side
    1,292.76x = 1,015,098.24
  5. Step 5: Solve for x
    x = 1,015,098.24/1,292.76
  6. Step 6: Final answer
    x = 785.22

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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.