Home / 2,223.10-3,067.86-1,228.45

Finding the Fourth Proportional to 2,223.10, 3,067.86 and 1,228.45

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Solution

The fourth proportional to 2,223.10, 3,067.86 and 1,228.45 is: 1,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.10 : 3,067.86 = 1,228.45 : x
  2. Step 2: Convert to fraction form
    2,223.10/3,067.86 = 1,228.45/x
  3. Step 3: Cross multiply
    2,223.10x = 3,067.86 × 1,228.45
  4. Step 4: Simplify right side
    2,223.10x = 3,768,697.28
  5. Step 5: Solve for x
    x = 3,768,697.28/2,223.10
  6. Step 6: Final answer
    x = 1,695.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.