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Finding the Fourth Proportional to 1,928.03, 2,875.11 and 1,910.49

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Solution

The fourth proportional to 1,928.03, 2,875.11 and 1,910.49 is: 2,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.03 : 2,875.11 = 1,910.49 : x
  2. Step 2: Convert to fraction form
    1,928.03/2,875.11 = 1,910.49/x
  3. Step 3: Cross multiply
    1,928.03x = 2,875.11 × 1,910.49
  4. Step 4: Simplify right side
    1,928.03x = 5,492,850.96
  5. Step 5: Solve for x
    x = 5,492,850.96/1,928.03
  6. Step 6: Final answer
    x = 2,848.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.