Home / 2,389.16-3,296.79-1,326.89

Finding the Fourth Proportional to 2,389.16, 3,296.79 and 1,326.89

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Solution

The fourth proportional to 2,389.16, 3,296.79 and 1,326.89 is: 1,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.16 : 3,296.79 = 1,326.89 : x
  2. Step 2: Convert to fraction form
    2,389.16/3,296.79 = 1,326.89/x
  3. Step 3: Cross multiply
    2,389.16x = 3,296.79 × 1,326.89
  4. Step 4: Simplify right side
    2,389.16x = 4,374,477.68
  5. Step 5: Solve for x
    x = 4,374,477.68/2,389.16
  6. Step 6: Final answer
    x = 1,830.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.