Home / 3,103.16-4,280.94-1,983.80

Finding the Fourth Proportional to 3,103.16, 4,280.94 and 1,983.80

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Solution

The fourth proportional to 3,103.16, 4,280.94 and 1,983.80 is: 2,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.16 : 4,280.94 = 1,983.80 : x
  2. Step 2: Convert to fraction form
    3,103.16/4,280.94 = 1,983.80/x
  3. Step 3: Cross multiply
    3,103.16x = 4,280.94 × 1,983.80
  4. Step 4: Simplify right side
    3,103.16x = 8,492,528.77
  5. Step 5: Solve for x
    x = 8,492,528.77/3,103.16
  6. Step 6: Final answer
    x = 2,736.74

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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.