Home / 3,611.93-5,417.29-1,421.29

Finding the Fourth Proportional to 3,611.93, 5,417.29 and 1,421.29

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Solution

The fourth proportional to 3,611.93, 5,417.29 and 1,421.29 is: 2,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.93 : 5,417.29 = 1,421.29 : x
  2. Step 2: Convert to fraction form
    3,611.93/5,417.29 = 1,421.29/x
  3. Step 3: Cross multiply
    3,611.93x = 5,417.29 × 1,421.29
  4. Step 4: Simplify right side
    3,611.93x = 7,699,505.91
  5. Step 5: Solve for x
    x = 7,699,505.91/3,611.93
  6. Step 6: Final answer
    x = 2,131.69

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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.