Home / 2,389.10-3,296.66-1,326.86

Finding the Fourth Proportional to 2,389.10, 3,296.66 and 1,326.86

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Solution

The fourth proportional to 2,389.10, 3,296.66 and 1,326.86 is: 1,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.10 : 3,296.66 = 1,326.86 : x
  2. Step 2: Convert to fraction form
    2,389.10/3,296.66 = 1,326.86/x
  3. Step 3: Cross multiply
    2,389.10x = 3,296.66 × 1,326.86
  4. Step 4: Simplify right side
    2,389.10x = 4,374,206.29
  5. Step 5: Solve for x
    x = 4,374,206.29/2,389.10
  6. Step 6: Final answer
    x = 1,830.90

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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.