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Finding the Fourth Proportional to 2,868.33, 3,956.79 and 2,368.05

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Solution

The fourth proportional to 2,868.33, 3,956.79 and 2,368.05 is: 3,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.33 : 3,956.79 = 2,368.05 : x
  2. Step 2: Convert to fraction form
    2,868.33/3,956.79 = 2,368.05/x
  3. Step 3: Cross multiply
    2,868.33x = 3,956.79 × 2,368.05
  4. Step 4: Simplify right side
    2,868.33x = 9,369,876.56
  5. Step 5: Solve for x
    x = 9,369,876.56/2,868.33
  6. Step 6: Final answer
    x = 3,266.67

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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.