Home / 2,319.81-3,204.41-1,729.32

Finding the Fourth Proportional to 2,319.81, 3,204.41 and 1,729.32

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Solution

The fourth proportional to 2,319.81, 3,204.41 and 1,729.32 is: 2,388.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.81 : 3,204.41 = 1,729.32 : x
  2. Step 2: Convert to fraction form
    2,319.81/3,204.41 = 1,729.32/x
  3. Step 3: Cross multiply
    2,319.81x = 3,204.41 × 1,729.32
  4. Step 4: Simplify right side
    2,319.81x = 5,541,450.30
  5. Step 5: Solve for x
    x = 5,541,450.30/2,319.81
  6. Step 6: Final answer
    x = 2,388.75

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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.