Home / 3,218.80-4,832.10-2,048.80

Finding the Fourth Proportional to 3,218.80, 4,832.10 and 2,048.80

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Solution

The fourth proportional to 3,218.80, 4,832.10 and 2,048.80 is: 3,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.80 : 4,832.10 = 2,048.80 : x
  2. Step 2: Convert to fraction form
    3,218.80/4,832.10 = 2,048.80/x
  3. Step 3: Cross multiply
    3,218.80x = 4,832.10 × 2,048.80
  4. Step 4: Simplify right side
    3,218.80x = 9,900,006.48
  5. Step 5: Solve for x
    x = 9,900,006.48/3,218.80
  6. Step 6: Final answer
    x = 3,075.68

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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.