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Finding the Fourth Proportional to 2,134.74, 2,941.37 and 1,434.90

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Solution

The fourth proportional to 2,134.74, 2,941.37 and 1,434.90 is: 1,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.74 : 2,941.37 = 1,434.90 : x
  2. Step 2: Convert to fraction form
    2,134.74/2,941.37 = 1,434.90/x
  3. Step 3: Cross multiply
    2,134.74x = 2,941.37 × 1,434.90
  4. Step 4: Simplify right side
    2,134.74x = 4,220,571.81
  5. Step 5: Solve for x
    x = 4,220,571.81/2,134.74
  6. Step 6: Final answer
    x = 1,977.09

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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.