Home / 3,378.41-4,663.73-1,981.25

Finding the Fourth Proportional to 3,378.41, 4,663.73 and 1,981.25

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Solution

The fourth proportional to 3,378.41, 4,663.73 and 1,981.25 is: 2,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.41 : 4,663.73 = 1,981.25 : x
  2. Step 2: Convert to fraction form
    3,378.41/4,663.73 = 1,981.25/x
  3. Step 3: Cross multiply
    3,378.41x = 4,663.73 × 1,981.25
  4. Step 4: Simplify right side
    3,378.41x = 9,240,015.06
  5. Step 5: Solve for x
    x = 9,240,015.06/3,378.41
  6. Step 6: Final answer
    x = 2,735.02

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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.