Home / 2,620.16-3,930.66-1,303.97

Finding the Fourth Proportional to 2,620.16, 3,930.66 and 1,303.97

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Solution

The fourth proportional to 2,620.16, 3,930.66 and 1,303.97 is: 1,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.16 : 3,930.66 = 1,303.97 : x
  2. Step 2: Convert to fraction form
    2,620.16/3,930.66 = 1,303.97/x
  3. Step 3: Cross multiply
    2,620.16x = 3,930.66 × 1,303.97
  4. Step 4: Simplify right side
    2,620.16x = 5,125,443.07
  5. Step 5: Solve for x
    x = 5,125,443.07/2,620.16
  6. Step 6: Final answer
    x = 1,956.16

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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.