Home / 1,984.14-2,980.53-1,619.82

Finding the Fourth Proportional to 1,984.14, 2,980.53 and 1,619.82

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Solution

The fourth proportional to 1,984.14, 2,980.53 and 1,619.82 is: 2,433.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.14 : 2,980.53 = 1,619.82 : x
  2. Step 2: Convert to fraction form
    1,984.14/2,980.53 = 1,619.82/x
  3. Step 3: Cross multiply
    1,984.14x = 2,980.53 × 1,619.82
  4. Step 4: Simplify right side
    1,984.14x = 4,827,922.10
  5. Step 5: Solve for x
    x = 4,827,922.10/1,984.14
  6. Step 6: Final answer
    x = 2,433.26

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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.