Home / 3,980.24-5,968.32-1,513.19

Finding the Fourth Proportional to 3,980.24, 5,968.32 and 1,513.19

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Solution

The fourth proportional to 3,980.24, 5,968.32 and 1,513.19 is: 2,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.24 : 5,968.32 = 1,513.19 : x
  2. Step 2: Convert to fraction form
    3,980.24/5,968.32 = 1,513.19/x
  3. Step 3: Cross multiply
    3,980.24x = 5,968.32 × 1,513.19
  4. Step 4: Simplify right side
    3,980.24x = 9,031,202.14
  5. Step 5: Solve for x
    x = 9,031,202.14/3,980.24
  6. Step 6: Final answer
    x = 2,269.01

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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.