Home / 3,317.94-4,574.61-2,790.90

Finding the Fourth Proportional to 3,317.94, 4,574.61 and 2,790.90

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Solution

The fourth proportional to 3,317.94, 4,574.61 and 2,790.90 is: 3,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.94 : 4,574.61 = 2,790.90 : x
  2. Step 2: Convert to fraction form
    3,317.94/4,574.61 = 2,790.90/x
  3. Step 3: Cross multiply
    3,317.94x = 4,574.61 × 2,790.90
  4. Step 4: Simplify right side
    3,317.94x = 12,767,279.05
  5. Step 5: Solve for x
    x = 12,767,279.05/3,317.94
  6. Step 6: Final answer
    x = 3,847.95

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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.