Home / 4,480.57-6,717.79-1,980.56

Finding the Fourth Proportional to 4,480.57, 6,717.79 and 1,980.56

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Solution

The fourth proportional to 4,480.57, 6,717.79 and 1,980.56 is: 2,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.57 : 6,717.79 = 1,980.56 : x
  2. Step 2: Convert to fraction form
    4,480.57/6,717.79 = 1,980.56/x
  3. Step 3: Cross multiply
    4,480.57x = 6,717.79 × 1,980.56
  4. Step 4: Simplify right side
    4,480.57x = 13,304,975.40
  5. Step 5: Solve for x
    x = 13,304,975.40/4,480.57
  6. Step 6: Final answer
    x = 2,969.48

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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.