Home / 4,178.26-5,765.74-2,289.49

Finding the Fourth Proportional to 4,178.26, 5,765.74 and 2,289.49

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Solution

The fourth proportional to 4,178.26, 5,765.74 and 2,289.49 is: 3,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.26 : 5,765.74 = 2,289.49 : x
  2. Step 2: Convert to fraction form
    4,178.26/5,765.74 = 2,289.49/x
  3. Step 3: Cross multiply
    4,178.26x = 5,765.74 × 2,289.49
  4. Step 4: Simplify right side
    4,178.26x = 13,200,604.07
  5. Step 5: Solve for x
    x = 13,200,604.07/4,178.26
  6. Step 6: Final answer
    x = 3,159.35

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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.