Home / 3,890.80-5,367.37-2,564.02

Finding the Fourth Proportional to 3,890.80, 5,367.37 and 2,564.02

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Solution

The fourth proportional to 3,890.80, 5,367.37 and 2,564.02 is: 3,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.80 : 5,367.37 = 2,564.02 : x
  2. Step 2: Convert to fraction form
    3,890.80/5,367.37 = 2,564.02/x
  3. Step 3: Cross multiply
    3,890.80x = 5,367.37 × 2,564.02
  4. Step 4: Simplify right side
    3,890.80x = 13,762,044.03
  5. Step 5: Solve for x
    x = 13,762,044.03/3,890.80
  6. Step 6: Final answer
    x = 3,537.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.