Home / 3,187.98-4,783.55-2,079.56

Finding the Fourth Proportional to 3,187.98, 4,783.55 and 2,079.56

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Solution

The fourth proportional to 3,187.98, 4,783.55 and 2,079.56 is: 3,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.98 : 4,783.55 = 2,079.56 : x
  2. Step 2: Convert to fraction form
    3,187.98/4,783.55 = 2,079.56/x
  3. Step 3: Cross multiply
    3,187.98x = 4,783.55 × 2,079.56
  4. Step 4: Simplify right side
    3,187.98x = 9,947,669.17
  5. Step 5: Solve for x
    x = 9,947,669.17/3,187.98
  6. Step 6: Final answer
    x = 3,120.37

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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.