Home / 2,605.90-3,904.73-2,089.26

Finding the Fourth Proportional to 2,605.90, 3,904.73 and 2,089.26

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Solution

The fourth proportional to 2,605.90, 3,904.73 and 2,089.26 is: 3,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.90 : 3,904.73 = 2,089.26 : x
  2. Step 2: Convert to fraction form
    2,605.90/3,904.73 = 2,089.26/x
  3. Step 3: Cross multiply
    2,605.90x = 3,904.73 × 2,089.26
  4. Step 4: Simplify right side
    2,605.90x = 8,157,996.20
  5. Step 5: Solve for x
    x = 8,157,996.20/2,605.90
  6. Step 6: Final answer
    x = 3,130.59

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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.