Home / 1,768.06-2,440.19-1,272.34

Finding the Fourth Proportional to 1,768.06, 2,440.19 and 1,272.34

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Solution

The fourth proportional to 1,768.06, 2,440.19 and 1,272.34 is: 1,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.06 : 2,440.19 = 1,272.34 : x
  2. Step 2: Convert to fraction form
    1,768.06/2,440.19 = 1,272.34/x
  3. Step 3: Cross multiply
    1,768.06x = 2,440.19 × 1,272.34
  4. Step 4: Simplify right side
    1,768.06x = 3,104,732.78
  5. Step 5: Solve for x
    x = 3,104,732.78/1,768.06
  6. Step 6: Final answer
    x = 1,756.02

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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.