Home / 3,586.86-5,381.37-1,121.94

Finding the Fourth Proportional to 3,586.86, 5,381.37 and 1,121.94

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Solution

The fourth proportional to 3,586.86, 5,381.37 and 1,121.94 is: 1,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.86 : 5,381.37 = 1,121.94 : x
  2. Step 2: Convert to fraction form
    3,586.86/5,381.37 = 1,121.94/x
  3. Step 3: Cross multiply
    3,586.86x = 5,381.37 × 1,121.94
  4. Step 4: Simplify right side
    3,586.86x = 6,037,574.26
  5. Step 5: Solve for x
    x = 6,037,574.26/3,586.86
  6. Step 6: Final answer
    x = 1,683.25

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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.