Home / 4,178.93-5,765.50-2,385.12

Finding the Fourth Proportional to 4,178.93, 5,765.50 and 2,385.12

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Solution

The fourth proportional to 4,178.93, 5,765.50 and 2,385.12 is: 3,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.93 : 5,765.50 = 2,385.12 : x
  2. Step 2: Convert to fraction form
    4,178.93/5,765.50 = 2,385.12/x
  3. Step 3: Cross multiply
    4,178.93x = 5,765.50 × 2,385.12
  4. Step 4: Simplify right side
    4,178.93x = 13,751,409.36
  5. Step 5: Solve for x
    x = 13,751,409.36/4,178.93
  6. Step 6: Final answer
    x = 3,290.65

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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.