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Finding the Fourth Proportional to 3,850.79, 5,314.01 and 2,358.77

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Solution

The fourth proportional to 3,850.79, 5,314.01 and 2,358.77 is: 3,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.79 : 5,314.01 = 2,358.77 : x
  2. Step 2: Convert to fraction form
    3,850.79/5,314.01 = 2,358.77/x
  3. Step 3: Cross multiply
    3,850.79x = 5,314.01 × 2,358.77
  4. Step 4: Simplify right side
    3,850.79x = 12,534,489.00
  5. Step 5: Solve for x
    x = 12,534,489.00/3,850.79
  6. Step 6: Final answer
    x = 3,255.05

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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.