Home / 1,905.68-2,630.09-1,066.43

Finding the Fourth Proportional to 1,905.68, 2,630.09 and 1,066.43

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Solution

The fourth proportional to 1,905.68, 2,630.09 and 1,066.43 is: 1,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.68 : 2,630.09 = 1,066.43 : x
  2. Step 2: Convert to fraction form
    1,905.68/2,630.09 = 1,066.43/x
  3. Step 3: Cross multiply
    1,905.68x = 2,630.09 × 1,066.43
  4. Step 4: Simplify right side
    1,905.68x = 2,804,788.40
  5. Step 5: Solve for x
    x = 2,804,788.40/1,905.68
  6. Step 6: Final answer
    x = 1,471.81

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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.