Home / 6,418.80-9,628.48-2,259.20

Finding the Fourth Proportional to 6,418.80, 9,628.48 and 2,259.20

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Solution

The fourth proportional to 6,418.80, 9,628.48 and 2,259.20 is: 3,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.80 : 9,628.48 = 2,259.20 : x
  2. Step 2: Convert to fraction form
    6,418.80/9,628.48 = 2,259.20/x
  3. Step 3: Cross multiply
    6,418.80x = 9,628.48 × 2,259.20
  4. Step 4: Simplify right side
    6,418.80x = 21,752,662.02
  5. Step 5: Solve for x
    x = 21,752,662.02/6,418.80
  6. Step 6: Final answer
    x = 3,388.90

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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.