Home / 3,112.48-4,294.95-1,768.07

Finding the Fourth Proportional to 3,112.48, 4,294.95 and 1,768.07

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Solution

The fourth proportional to 3,112.48, 4,294.95 and 1,768.07 is: 2,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.48 : 4,294.95 = 1,768.07 : x
  2. Step 2: Convert to fraction form
    3,112.48/4,294.95 = 1,768.07/x
  3. Step 3: Cross multiply
    3,112.48x = 4,294.95 × 1,768.07
  4. Step 4: Simplify right side
    3,112.48x = 7,593,772.25
  5. Step 5: Solve for x
    x = 7,593,772.25/3,112.48
  6. Step 6: Final answer
    x = 2,439.79

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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.