Home / 4,745.20-7,119.24-2,148.16

Finding the Fourth Proportional to 4,745.20, 7,119.24 and 2,148.16

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Solution

The fourth proportional to 4,745.20, 7,119.24 and 2,148.16 is: 3,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.20 : 7,119.24 = 2,148.16 : x
  2. Step 2: Convert to fraction form
    4,745.20/7,119.24 = 2,148.16/x
  3. Step 3: Cross multiply
    4,745.20x = 7,119.24 × 2,148.16
  4. Step 4: Simplify right side
    4,745.20x = 15,293,266.60
  5. Step 5: Solve for x
    x = 15,293,266.60/4,745.20
  6. Step 6: Final answer
    x = 3,222.89

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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.