Home / 4,178.27-5,765.71-2,289.55

Finding the Fourth Proportional to 4,178.27, 5,765.71 and 2,289.55

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Solution

The fourth proportional to 4,178.27, 5,765.71 and 2,289.55 is: 3,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.27 : 5,765.71 = 2,289.55 : x
  2. Step 2: Convert to fraction form
    4,178.27/5,765.71 = 2,289.55/x
  3. Step 3: Cross multiply
    4,178.27x = 5,765.71 × 2,289.55
  4. Step 4: Simplify right side
    4,178.27x = 13,200,881.33
  5. Step 5: Solve for x
    x = 13,200,881.33/4,178.27
  6. Step 6: Final answer
    x = 3,159.41

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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.