Home / 1,325.55-1,986.26-503.38

Finding the Fourth Proportional to 1,325.55, 1,986.26 and 503.38

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Solution

The fourth proportional to 1,325.55, 1,986.26 and 503.38 is: 754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.55 : 1,986.26 = 503.38 : x
  2. Step 2: Convert to fraction form
    1,325.55/1,986.26 = 503.38/x
  3. Step 3: Cross multiply
    1,325.55x = 1,986.26 × 503.38
  4. Step 4: Simplify right side
    1,325.55x = 999,843.56
  5. Step 5: Solve for x
    x = 999,843.56/1,325.55
  6. Step 6: Final answer
    x = 754.29

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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.