Home / 3,586.36-5,379.70-1,121.23

Finding the Fourth Proportional to 3,586.36, 5,379.70 and 1,121.23

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Solution

The fourth proportional to 3,586.36, 5,379.70 and 1,121.23 is: 1,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.36 : 5,379.70 = 1,121.23 : x
  2. Step 2: Convert to fraction form
    3,586.36/5,379.70 = 1,121.23/x
  3. Step 3: Cross multiply
    3,586.36x = 5,379.70 × 1,121.23
  4. Step 4: Simplify right side
    3,586.36x = 6,031,881.03
  5. Step 5: Solve for x
    x = 6,031,881.03/3,586.36
  6. Step 6: Final answer
    x = 1,681.90

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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.