Home / 2,589.12-3,884.16-1,051.20

Finding the Fourth Proportional to 2,589.12, 3,884.16 and 1,051.20

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Solution

The fourth proportional to 2,589.12, 3,884.16 and 1,051.20 is: 1,576.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.12 : 3,884.16 = 1,051.20 : x
  2. Step 2: Convert to fraction form
    2,589.12/3,884.16 = 1,051.20/x
  3. Step 3: Cross multiply
    2,589.12x = 3,884.16 × 1,051.20
  4. Step 4: Simplify right side
    2,589.12x = 4,083,028.99
  5. Step 5: Solve for x
    x = 4,083,028.99/2,589.12
  6. Step 6: Final answer
    x = 1,576.99

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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.