Home / 2,325.95-3,209.79-1,331.21

Finding the Fourth Proportional to 2,325.95, 3,209.79 and 1,331.21

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Solution

The fourth proportional to 2,325.95, 3,209.79 and 1,331.21 is: 1,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.95 : 3,209.79 = 1,331.21 : x
  2. Step 2: Convert to fraction form
    2,325.95/3,209.79 = 1,331.21/x
  3. Step 3: Cross multiply
    2,325.95x = 3,209.79 × 1,331.21
  4. Step 4: Simplify right side
    2,325.95x = 4,272,917.56
  5. Step 5: Solve for x
    x = 4,272,917.56/2,325.95
  6. Step 6: Final answer
    x = 1,837.06

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1.5x scale

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.