Home / 2,183.84-3,012.12-1,972.64

Finding the Fourth Proportional to 2,183.84, 3,012.12 and 1,972.64

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Solution

The fourth proportional to 2,183.84, 3,012.12 and 1,972.64 is: 2,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.84 : 3,012.12 = 1,972.64 : x
  2. Step 2: Convert to fraction form
    2,183.84/3,012.12 = 1,972.64/x
  3. Step 3: Cross multiply
    2,183.84x = 3,012.12 × 1,972.64
  4. Step 4: Simplify right side
    2,183.84x = 5,941,828.40
  5. Step 5: Solve for x
    x = 5,941,828.40/2,183.84
  6. Step 6: Final answer
    x = 2,720.82

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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.