Home / 4,218.75-6,328.43-1,216.67

Finding the Fourth Proportional to 4,218.75, 6,328.43 and 1,216.67

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Solution

The fourth proportional to 4,218.75, 6,328.43 and 1,216.67 is: 1,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.75 : 6,328.43 = 1,216.67 : x
  2. Step 2: Convert to fraction form
    4,218.75/6,328.43 = 1,216.67/x
  3. Step 3: Cross multiply
    4,218.75x = 6,328.43 × 1,216.67
  4. Step 4: Simplify right side
    4,218.75x = 7,699,573.20
  5. Step 5: Solve for x
    x = 7,699,573.20/4,218.75
  6. Step 6: Final answer
    x = 1,825.08

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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.