Home / 2,223.22-3,068.01-1,228.51

Finding the Fourth Proportional to 2,223.22, 3,068.01 and 1,228.51

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Solution

The fourth proportional to 2,223.22, 3,068.01 and 1,228.51 is: 1,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.22 : 3,068.01 = 1,228.51 : x
  2. Step 2: Convert to fraction form
    2,223.22/3,068.01 = 1,228.51/x
  3. Step 3: Cross multiply
    2,223.22x = 3,068.01 × 1,228.51
  4. Step 4: Simplify right side
    2,223.22x = 3,769,080.05
  5. Step 5: Solve for x
    x = 3,769,080.05/2,223.22
  6. Step 6: Final answer
    x = 1,695.33

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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.