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Finding the Fourth Proportional to 2,830.83, 3,903.39 and 1,834.80

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Solution

The fourth proportional to 2,830.83, 3,903.39 and 1,834.80 is: 2,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.83 : 3,903.39 = 1,834.80 : x
  2. Step 2: Convert to fraction form
    2,830.83/3,903.39 = 1,834.80/x
  3. Step 3: Cross multiply
    2,830.83x = 3,903.39 × 1,834.80
  4. Step 4: Simplify right side
    2,830.83x = 7,161,939.97
  5. Step 5: Solve for x
    x = 7,161,939.97/2,830.83
  6. Step 6: Final answer
    x = 2,529.98

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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.