Home / 2,223.20-3,334.80-1,866.80

Finding the Fourth Proportional to 2,223.20, 3,334.80 and 1,866.80

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Solution

The fourth proportional to 2,223.20, 3,334.80 and 1,866.80 is: 2,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.20 : 3,334.80 = 1,866.80 : x
  2. Step 2: Convert to fraction form
    2,223.20/3,334.80 = 1,866.80/x
  3. Step 3: Cross multiply
    2,223.20x = 3,334.80 × 1,866.80
  4. Step 4: Simplify right side
    2,223.20x = 6,225,404.64
  5. Step 5: Solve for x
    x = 6,225,404.64/2,223.20
  6. Step 6: Final answer
    x = 2,800.20

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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.