Home / 4,851.12-7,279.70-2,218.20

Finding the Fourth Proportional to 4,851.12, 7,279.70 and 2,218.20

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Solution

The fourth proportional to 4,851.12, 7,279.70 and 2,218.20 is: 3,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.12 : 7,279.70 = 2,218.20 : x
  2. Step 2: Convert to fraction form
    4,851.12/7,279.70 = 2,218.20/x
  3. Step 3: Cross multiply
    4,851.12x = 7,279.70 × 2,218.20
  4. Step 4: Simplify right side
    4,851.12x = 16,147,830.54
  5. Step 5: Solve for x
    x = 16,147,830.54/4,851.12
  6. Step 6: Final answer
    x = 3,328.68

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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.