Home / 2,742.09-4,112.34-1,955.54

Finding the Fourth Proportional to 2,742.09, 4,112.34 and 1,955.54

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Solution

The fourth proportional to 2,742.09, 4,112.34 and 1,955.54 is: 2,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.09 : 4,112.34 = 1,955.54 : x
  2. Step 2: Convert to fraction form
    2,742.09/4,112.34 = 1,955.54/x
  3. Step 3: Cross multiply
    2,742.09x = 4,112.34 × 1,955.54
  4. Step 4: Simplify right side
    2,742.09x = 8,041,848.31
  5. Step 5: Solve for x
    x = 8,041,848.31/2,742.09
  6. Step 6: Final answer
    x = 2,932.75

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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.