Home / 2,819.64-3,890.60-1,624.41

Finding the Fourth Proportional to 2,819.64, 3,890.60 and 1,624.41

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Solution

The fourth proportional to 2,819.64, 3,890.60 and 1,624.41 is: 2,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.64 : 3,890.60 = 1,624.41 : x
  2. Step 2: Convert to fraction form
    2,819.64/3,890.60 = 1,624.41/x
  3. Step 3: Cross multiply
    2,819.64x = 3,890.60 × 1,624.41
  4. Step 4: Simplify right side
    2,819.64x = 6,319,921.42
  5. Step 5: Solve for x
    x = 6,319,921.42/2,819.64
  6. Step 6: Final answer
    x = 2,241.39

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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.