Home / 2,840.22-4,257.82-1,107.63

Finding the Fourth Proportional to 2,840.22, 4,257.82 and 1,107.63

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Solution

The fourth proportional to 2,840.22, 4,257.82 and 1,107.63 is: 1,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.22 : 4,257.82 = 1,107.63 : x
  2. Step 2: Convert to fraction form
    2,840.22/4,257.82 = 1,107.63/x
  3. Step 3: Cross multiply
    2,840.22x = 4,257.82 × 1,107.63
  4. Step 4: Simplify right side
    2,840.22x = 4,716,089.17
  5. Step 5: Solve for x
    x = 4,716,089.17/2,840.22
  6. Step 6: Final answer
    x = 1,660.47

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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.