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Finding the Fourth Proportional to 2,600.64, 3,908.03 and 1,368.63

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Solution

The fourth proportional to 2,600.64, 3,908.03 and 1,368.63 is: 2,056.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.64 : 3,908.03 = 1,368.63 : x
  2. Step 2: Convert to fraction form
    2,600.64/3,908.03 = 1,368.63/x
  3. Step 3: Cross multiply
    2,600.64x = 3,908.03 × 1,368.63
  4. Step 4: Simplify right side
    2,600.64x = 5,348,647.10
  5. Step 5: Solve for x
    x = 5,348,647.10/2,600.64
  6. Step 6: Final answer
    x = 2,056.67

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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.