Home / 1,844.32-2,763.90-1,431.55

Finding the Fourth Proportional to 1,844.32, 2,763.90 and 1,431.55

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Solution

The fourth proportional to 1,844.32, 2,763.90 and 1,431.55 is: 2,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.32 : 2,763.90 = 1,431.55 : x
  2. Step 2: Convert to fraction form
    1,844.32/2,763.90 = 1,431.55/x
  3. Step 3: Cross multiply
    1,844.32x = 2,763.90 × 1,431.55
  4. Step 4: Simplify right side
    1,844.32x = 3,956,661.05
  5. Step 5: Solve for x
    x = 3,956,661.05/1,844.32
  6. Step 6: Final answer
    x = 2,145.32

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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.