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Finding the Fourth Proportional to 2,133.44, 2,945.05 and 1,435.22

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Solution

The fourth proportional to 2,133.44, 2,945.05 and 1,435.22 is: 1,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.44 : 2,945.05 = 1,435.22 : x
  2. Step 2: Convert to fraction form
    2,133.44/2,945.05 = 1,435.22/x
  3. Step 3: Cross multiply
    2,133.44x = 2,945.05 × 1,435.22
  4. Step 4: Simplify right side
    2,133.44x = 4,226,794.66
  5. Step 5: Solve for x
    x = 4,226,794.66/2,133.44
  6. Step 6: Final answer
    x = 1,981.21

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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.