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Finding the Fourth Proportional to 1,371.98, 1,893.33 and 750.98

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Solution

The fourth proportional to 1,371.98, 1,893.33 and 750.98 is: 1,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.98 : 1,893.33 = 750.98 : x
  2. Step 2: Convert to fraction form
    1,371.98/1,893.33 = 750.98/x
  3. Step 3: Cross multiply
    1,371.98x = 1,893.33 × 750.98
  4. Step 4: Simplify right side
    1,371.98x = 1,421,852.96
  5. Step 5: Solve for x
    x = 1,421,852.96/1,371.98
  6. Step 6: Final answer
    x = 1,036.35

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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.