Home / 2,620.58-3,930.26-1,158.93

Finding the Fourth Proportional to 2,620.58, 3,930.26 and 1,158.93

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Solution

The fourth proportional to 2,620.58, 3,930.26 and 1,158.93 is: 1,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.58 : 3,930.26 = 1,158.93 : x
  2. Step 2: Convert to fraction form
    2,620.58/3,930.26 = 1,158.93/x
  3. Step 3: Cross multiply
    2,620.58x = 3,930.26 × 1,158.93
  4. Step 4: Simplify right side
    2,620.58x = 4,554,890.43
  5. Step 5: Solve for x
    x = 4,554,890.43/2,620.58
  6. Step 6: Final answer
    x = 1,738.13

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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.