Home / 3,421.26-5,127.10-2,587.62

Finding the Fourth Proportional to 3,421.26, 5,127.10 and 2,587.62

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Solution

The fourth proportional to 3,421.26, 5,127.10 and 2,587.62 is: 3,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.26 : 5,127.10 = 2,587.62 : x
  2. Step 2: Convert to fraction form
    3,421.26/5,127.10 = 2,587.62/x
  3. Step 3: Cross multiply
    3,421.26x = 5,127.10 × 2,587.62
  4. Step 4: Simplify right side
    3,421.26x = 13,266,986.50
  5. Step 5: Solve for x
    x = 13,266,986.50/3,421.26
  6. Step 6: Final answer
    x = 3,877.81

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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.