Home / 3,865.86-5,333.49-2,540.28

Finding the Fourth Proportional to 3,865.86, 5,333.49 and 2,540.28

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Solution

The fourth proportional to 3,865.86, 5,333.49 and 2,540.28 is: 3,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.86 : 5,333.49 = 2,540.28 : x
  2. Step 2: Convert to fraction form
    3,865.86/5,333.49 = 2,540.28/x
  3. Step 3: Cross multiply
    3,865.86x = 5,333.49 × 2,540.28
  4. Step 4: Simplify right side
    3,865.86x = 13,548,557.98
  5. Step 5: Solve for x
    x = 13,548,557.98/3,865.86
  6. Step 6: Final answer
    x = 3,504.67

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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.