Home / 3,846.32-5,771.30-2,289.40

Finding the Fourth Proportional to 3,846.32, 5,771.30 and 2,289.40

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Solution

The fourth proportional to 3,846.32, 5,771.30 and 2,289.40 is: 3,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.32 : 5,771.30 = 2,289.40 : x
  2. Step 2: Convert to fraction form
    3,846.32/5,771.30 = 2,289.40/x
  3. Step 3: Cross multiply
    3,846.32x = 5,771.30 × 2,289.40
  4. Step 4: Simplify right side
    3,846.32x = 13,212,814.22
  5. Step 5: Solve for x
    x = 13,212,814.22/3,846.32
  6. Step 6: Final answer
    x = 3,435.18

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1.5x scale

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.