Home / 5,220.63-7,796.79-4,182.21

Finding the Fourth Proportional to 5,220.63, 7,796.79 and 4,182.21

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Solution

The fourth proportional to 5,220.63, 7,796.79 and 4,182.21 is: 6,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.63 : 7,796.79 = 4,182.21 : x
  2. Step 2: Convert to fraction form
    5,220.63/7,796.79 = 4,182.21/x
  3. Step 3: Cross multiply
    5,220.63x = 7,796.79 × 4,182.21
  4. Step 4: Simplify right side
    5,220.63x = 32,607,813.11
  5. Step 5: Solve for x
    x = 32,607,813.11/5,220.63
  6. Step 6: Final answer
    x = 6,245.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.