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Finding the Fourth Proportional to 2,284.70, 3,427.05 and 2,122.70

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Solution

The fourth proportional to 2,284.70, 3,427.05 and 2,122.70 is: 3,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.70 : 3,427.05 = 2,122.70 : x
  2. Step 2: Convert to fraction form
    2,284.70/3,427.05 = 2,122.70/x
  3. Step 3: Cross multiply
    2,284.70x = 3,427.05 × 2,122.70
  4. Step 4: Simplify right side
    2,284.70x = 7,274,599.04
  5. Step 5: Solve for x
    x = 7,274,599.04/2,284.70
  6. Step 6: Final answer
    x = 3,184.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.