Home / 2,255.84-3,112.20-2,252.36

Finding the Fourth Proportional to 2,255.84, 3,112.20 and 2,252.36

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Solution

The fourth proportional to 2,255.84, 3,112.20 and 2,252.36 is: 3,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.84 : 3,112.20 = 2,252.36 : x
  2. Step 2: Convert to fraction form
    2,255.84/3,112.20 = 2,252.36/x
  3. Step 3: Cross multiply
    2,255.84x = 3,112.20 × 2,252.36
  4. Step 4: Simplify right side
    2,255.84x = 7,009,779.23
  5. Step 5: Solve for x
    x = 7,009,779.23/2,255.84
  6. Step 6: Final answer
    x = 3,107.40

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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.