Home / 4,245.30-6,365.39-1,778.85

Finding the Fourth Proportional to 4,245.30, 6,365.39 and 1,778.85

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Solution

The fourth proportional to 4,245.30, 6,365.39 and 1,778.85 is: 2,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.30 : 6,365.39 = 1,778.85 : x
  2. Step 2: Convert to fraction form
    4,245.30/6,365.39 = 1,778.85/x
  3. Step 3: Cross multiply
    4,245.30x = 6,365.39 × 1,778.85
  4. Step 4: Simplify right side
    4,245.30x = 11,323,065.11
  5. Step 5: Solve for x
    x = 11,323,065.11/4,245.30
  6. Step 6: Final answer
    x = 2,667.20

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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.