Home / 3,985.20-5,980.53-1,522.09

Finding the Fourth Proportional to 3,985.20, 5,980.53 and 1,522.09

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Solution

The fourth proportional to 3,985.20, 5,980.53 and 1,522.09 is: 2,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.20 : 5,980.53 = 1,522.09 : x
  2. Step 2: Convert to fraction form
    3,985.20/5,980.53 = 1,522.09/x
  3. Step 3: Cross multiply
    3,985.20x = 5,980.53 × 1,522.09
  4. Step 4: Simplify right side
    3,985.20x = 9,102,918.09
  5. Step 5: Solve for x
    x = 9,102,918.09/3,985.20
  6. Step 6: Final answer
    x = 2,284.18

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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.