Home / 2,223.42-3,068.26-1,228.63

Finding the Fourth Proportional to 2,223.42, 3,068.26 and 1,228.63

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Solution

The fourth proportional to 2,223.42, 3,068.26 and 1,228.63 is: 1,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.42 : 3,068.26 = 1,228.63 : x
  2. Step 2: Convert to fraction form
    2,223.42/3,068.26 = 1,228.63/x
  3. Step 3: Cross multiply
    2,223.42x = 3,068.26 × 1,228.63
  4. Step 4: Simplify right side
    2,223.42x = 3,769,756.28
  5. Step 5: Solve for x
    x = 3,769,756.28/2,223.42
  6. Step 6: Final answer
    x = 1,695.48

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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.