Home / 2,840.11-4,260.35-892.39

Finding the Fourth Proportional to 2,840.11, 4,260.35 and 892.39

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Solution

The fourth proportional to 2,840.11, 4,260.35 and 892.39 is: 1,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.11 : 4,260.35 = 892.39 : x
  2. Step 2: Convert to fraction form
    2,840.11/4,260.35 = 892.39/x
  3. Step 3: Cross multiply
    2,840.11x = 4,260.35 × 892.39
  4. Step 4: Simplify right side
    2,840.11x = 3,801,893.74
  5. Step 5: Solve for x
    x = 3,801,893.74/2,840.11
  6. Step 6: Final answer
    x = 1,338.64

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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.