Home / 2,742.22-3,783.58-1,622.70

Finding the Fourth Proportional to 2,742.22, 3,783.58 and 1,622.70

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Solution

The fourth proportional to 2,742.22, 3,783.58 and 1,622.70 is: 2,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.22 : 3,783.58 = 1,622.70 : x
  2. Step 2: Convert to fraction form
    2,742.22/3,783.58 = 1,622.70/x
  3. Step 3: Cross multiply
    2,742.22x = 3,783.58 × 1,622.70
  4. Step 4: Simplify right side
    2,742.22x = 6,139,615.27
  5. Step 5: Solve for x
    x = 6,139,615.27/2,742.22
  6. Step 6: Final answer
    x = 2,238.92

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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.