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Finding the Fourth Proportional to 3,506.70, 4,838.80 and 1,994.22

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Solution

The fourth proportional to 3,506.70, 4,838.80 and 1,994.22 is: 2,751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.70 : 4,838.80 = 1,994.22 : x
  2. Step 2: Convert to fraction form
    3,506.70/4,838.80 = 1,994.22/x
  3. Step 3: Cross multiply
    3,506.70x = 4,838.80 × 1,994.22
  4. Step 4: Simplify right side
    3,506.70x = 9,649,631.74
  5. Step 5: Solve for x
    x = 9,649,631.74/3,506.70
  6. Step 6: Final answer
    x = 2,751.77

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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.