Home / 3,902.37-5,383.23-2,643.86

Finding the Fourth Proportional to 3,902.37, 5,383.23 and 2,643.86

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Solution

The fourth proportional to 3,902.37, 5,383.23 and 2,643.86 is: 3,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.37 : 5,383.23 = 2,643.86 : x
  2. Step 2: Convert to fraction form
    3,902.37/5,383.23 = 2,643.86/x
  3. Step 3: Cross multiply
    3,902.37x = 5,383.23 × 2,643.86
  4. Step 4: Simplify right side
    3,902.37x = 14,232,510.01
  5. Step 5: Solve for x
    x = 14,232,510.01/3,902.37
  6. Step 6: Final answer
    x = 3,647.15

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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.