Home / 2,742.46-3,783.38-1,622.63

Finding the Fourth Proportional to 2,742.46, 3,783.38 and 1,622.63

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Solution

The fourth proportional to 2,742.46, 3,783.38 and 1,622.63 is: 2,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.46 : 3,783.38 = 1,622.63 : x
  2. Step 2: Convert to fraction form
    2,742.46/3,783.38 = 1,622.63/x
  3. Step 3: Cross multiply
    2,742.46x = 3,783.38 × 1,622.63
  4. Step 4: Simplify right side
    2,742.46x = 6,139,027.23
  5. Step 5: Solve for x
    x = 6,139,027.23/2,742.46
  6. Step 6: Final answer
    x = 2,238.51

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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.