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Finding the Fourth Proportional to 4,980.84, 6,874.38 and 3,799.68

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Solution

The fourth proportional to 4,980.84, 6,874.38 and 3,799.68 is: 5,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.84 : 6,874.38 = 3,799.68 : x
  2. Step 2: Convert to fraction form
    4,980.84/6,874.38 = 3,799.68/x
  3. Step 3: Cross multiply
    4,980.84x = 6,874.38 × 3,799.68
  4. Step 4: Simplify right side
    4,980.84x = 26,120,444.20
  5. Step 5: Solve for x
    x = 26,120,444.20/4,980.84
  6. Step 6: Final answer
    x = 5,244.18

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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.