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Finding the Fourth Proportional to 3,498.85, 4,828.80 and 2,082.88

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Solution

The fourth proportional to 3,498.85, 4,828.80 and 2,082.88 is: 2,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.85 : 4,828.80 = 2,082.88 : x
  2. Step 2: Convert to fraction form
    3,498.85/4,828.80 = 2,082.88/x
  3. Step 3: Cross multiply
    3,498.85x = 4,828.80 × 2,082.88
  4. Step 4: Simplify right side
    3,498.85x = 10,057,810.94
  5. Step 5: Solve for x
    x = 10,057,810.94/3,498.85
  6. Step 6: Final answer
    x = 2,874.60

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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.