Home / 4,178.39-5,765.78-2,409.89

Finding the Fourth Proportional to 4,178.39, 5,765.78 and 2,409.89

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Solution

The fourth proportional to 4,178.39, 5,765.78 and 2,409.89 is: 3,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.39 : 5,765.78 = 2,409.89 : x
  2. Step 2: Convert to fraction form
    4,178.39/5,765.78 = 2,409.89/x
  3. Step 3: Cross multiply
    4,178.39x = 5,765.78 × 2,409.89
  4. Step 4: Simplify right side
    4,178.39x = 13,894,872.76
  5. Step 5: Solve for x
    x = 13,894,872.76/4,178.39
  6. Step 6: Final answer
    x = 3,325.42

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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.