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Finding the Fourth Proportional to 3,486.66, 4,809.16 and 2,959.05

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Solution

The fourth proportional to 3,486.66, 4,809.16 and 2,959.05 is: 4,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.66 : 4,809.16 = 2,959.05 : x
  2. Step 2: Convert to fraction form
    3,486.66/4,809.16 = 2,959.05/x
  3. Step 3: Cross multiply
    3,486.66x = 4,809.16 × 2,959.05
  4. Step 4: Simplify right side
    3,486.66x = 14,230,544.90
  5. Step 5: Solve for x
    x = 14,230,544.90/3,486.66
  6. Step 6: Final answer
    x = 4,081.43

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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.