Home / 2,620.08-3,930.89-1,059.28

Finding the Fourth Proportional to 2,620.08, 3,930.89 and 1,059.28

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Solution

The fourth proportional to 2,620.08, 3,930.89 and 1,059.28 is: 1,589.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.08 : 3,930.89 = 1,059.28 : x
  2. Step 2: Convert to fraction form
    2,620.08/3,930.89 = 1,059.28/x
  3. Step 3: Cross multiply
    2,620.08x = 3,930.89 × 1,059.28
  4. Step 4: Simplify right side
    2,620.08x = 4,163,913.16
  5. Step 5: Solve for x
    x = 4,163,913.16/2,620.08
  6. Step 6: Final answer
    x = 1,589.23

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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.