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Finding the Fourth Proportional to 3,672.81, 5,068.51 and 1,994.23

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Solution

The fourth proportional to 3,672.81, 5,068.51 and 1,994.23 is: 2,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.81 : 5,068.51 = 1,994.23 : x
  2. Step 2: Convert to fraction form
    3,672.81/5,068.51 = 1,994.23/x
  3. Step 3: Cross multiply
    3,672.81x = 5,068.51 × 1,994.23
  4. Step 4: Simplify right side
    3,672.81x = 10,107,774.70
  5. Step 5: Solve for x
    x = 10,107,774.70/3,672.81
  6. Step 6: Final answer
    x = 2,752.05

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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.