Home / 2,742.24-3,783.18-1,622.34

Finding the Fourth Proportional to 2,742.24, 3,783.18 and 1,622.34

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Solution

The fourth proportional to 2,742.24, 3,783.18 and 1,622.34 is: 2,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.24 : 3,783.18 = 1,622.34 : x
  2. Step 2: Convert to fraction form
    2,742.24/3,783.18 = 1,622.34/x
  3. Step 3: Cross multiply
    2,742.24x = 3,783.18 × 1,622.34
  4. Step 4: Simplify right side
    2,742.24x = 6,137,604.24
  5. Step 5: Solve for x
    x = 6,137,604.24/2,742.24
  6. Step 6: Final answer
    x = 2,238.17

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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.