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Finding the Fourth Proportional to 2,945.84, 4,064.43 and 1,898.51

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Solution

The fourth proportional to 2,945.84, 4,064.43 and 1,898.51 is: 2,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.84 : 4,064.43 = 1,898.51 : x
  2. Step 2: Convert to fraction form
    2,945.84/4,064.43 = 1,898.51/x
  3. Step 3: Cross multiply
    2,945.84x = 4,064.43 × 1,898.51
  4. Step 4: Simplify right side
    2,945.84x = 7,716,361.00
  5. Step 5: Solve for x
    x = 7,716,361.00/2,945.84
  6. Step 6: Final answer
    x = 2,619.41

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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.