Home / 1,895.82-2,840.09-1,407.39

Finding the Fourth Proportional to 1,895.82, 2,840.09 and 1,407.39

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Solution

The fourth proportional to 1,895.82, 2,840.09 and 1,407.39 is: 2,108.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.82 : 2,840.09 = 1,407.39 : x
  2. Step 2: Convert to fraction form
    1,895.82/2,840.09 = 1,407.39/x
  3. Step 3: Cross multiply
    1,895.82x = 2,840.09 × 1,407.39
  4. Step 4: Simplify right side
    1,895.82x = 3,997,107.23
  5. Step 5: Solve for x
    x = 3,997,107.23/1,895.82
  6. Step 6: Final answer
    x = 2,108.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.