Home / 4,775.45-7,165.20-3,021.80

Finding the Fourth Proportional to 4,775.45, 7,165.20 and 3,021.80

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Solution

The fourth proportional to 4,775.45, 7,165.20 and 3,021.80 is: 4,533.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.45 : 7,165.20 = 3,021.80 : x
  2. Step 2: Convert to fraction form
    4,775.45/7,165.20 = 3,021.80/x
  3. Step 3: Cross multiply
    4,775.45x = 7,165.20 × 3,021.80
  4. Step 4: Simplify right side
    4,775.45x = 21,651,801.36
  5. Step 5: Solve for x
    x = 21,651,801.36/4,775.45
  6. Step 6: Final answer
    x = 4,533.98

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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.