Home / 2,742.18-3,783.13-1,622.71

Finding the Fourth Proportional to 2,742.18, 3,783.13 and 1,622.71

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Solution

The fourth proportional to 2,742.18, 3,783.13 and 1,622.71 is: 2,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.18 : 3,783.13 = 1,622.71 : x
  2. Step 2: Convert to fraction form
    2,742.18/3,783.13 = 1,622.71/x
  3. Step 3: Cross multiply
    2,742.18x = 3,783.13 × 1,622.71
  4. Step 4: Simplify right side
    2,742.18x = 6,138,917.48
  5. Step 5: Solve for x
    x = 6,138,917.48/2,742.18
  6. Step 6: Final answer
    x = 2,238.70

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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.