Home / 3,115.94-4,298.74-2,184.98

Finding the Fourth Proportional to 3,115.94, 4,298.74 and 2,184.98

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Solution

The fourth proportional to 3,115.94, 4,298.74 and 2,184.98 is: 3,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.94 : 4,298.74 = 2,184.98 : x
  2. Step 2: Convert to fraction form
    3,115.94/4,298.74 = 2,184.98/x
  3. Step 3: Cross multiply
    3,115.94x = 4,298.74 × 2,184.98
  4. Step 4: Simplify right side
    3,115.94x = 9,392,633.97
  5. Step 5: Solve for x
    x = 9,392,633.97/3,115.94
  6. Step 6: Final answer
    x = 3,014.39

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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.