Home / 2,179.44-3,271.20-1,084.32

Finding the Fourth Proportional to 2,179.44, 3,271.20 and 1,084.32

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Solution

The fourth proportional to 2,179.44, 3,271.20 and 1,084.32 is: 1,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.44 : 3,271.20 = 1,084.32 : x
  2. Step 2: Convert to fraction form
    2,179.44/3,271.20 = 1,084.32/x
  3. Step 3: Cross multiply
    2,179.44x = 3,271.20 × 1,084.32
  4. Step 4: Simplify right side
    2,179.44x = 3,547,027.58
  5. Step 5: Solve for x
    x = 3,547,027.58/2,179.44
  6. Step 6: Final answer
    x = 1,627.49

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1.5x scale

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.