Home / 4,208.94-6,314.43-2,978.76

Finding the Fourth Proportional to 4,208.94, 6,314.43 and 2,978.76

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Solution

The fourth proportional to 4,208.94, 6,314.43 and 2,978.76 is: 4,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.94 : 6,314.43 = 2,978.76 : x
  2. Step 2: Convert to fraction form
    4,208.94/6,314.43 = 2,978.76/x
  3. Step 3: Cross multiply
    4,208.94x = 6,314.43 × 2,978.76
  4. Step 4: Simplify right side
    4,208.94x = 18,809,171.51
  5. Step 5: Solve for x
    x = 18,809,171.51/4,208.94
  6. Step 6: Final answer
    x = 4,468.86

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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.