Home / 2,824.40-4,231.84-2,165.58

Finding the Fourth Proportional to 2,824.40, 4,231.84 and 2,165.58

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Solution

The fourth proportional to 2,824.40, 4,231.84 and 2,165.58 is: 3,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.40 : 4,231.84 = 2,165.58 : x
  2. Step 2: Convert to fraction form
    2,824.40/4,231.84 = 2,165.58/x
  3. Step 3: Cross multiply
    2,824.40x = 4,231.84 × 2,165.58
  4. Step 4: Simplify right side
    2,824.40x = 9,164,388.07
  5. Step 5: Solve for x
    x = 9,164,388.07/2,824.40
  6. Step 6: Final answer
    x = 3,244.72

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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.