Home / 1,984.88-2,977.31-1,359.56

Finding the Fourth Proportional to 1,984.88, 2,977.31 and 1,359.56

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Solution

The fourth proportional to 1,984.88, 2,977.31 and 1,359.56 is: 2,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.88 : 2,977.31 = 1,359.56 : x
  2. Step 2: Convert to fraction form
    1,984.88/2,977.31 = 1,359.56/x
  3. Step 3: Cross multiply
    1,984.88x = 2,977.31 × 1,359.56
  4. Step 4: Simplify right side
    1,984.88x = 4,047,820.10
  5. Step 5: Solve for x
    x = 4,047,820.10/1,984.88
  6. Step 6: Final answer
    x = 2,039.33

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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.