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Finding the Fourth Proportional to 5,187.98, 7,783.02 and 1,901.00

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Solution

The fourth proportional to 5,187.98, 7,783.02 and 1,901.00 is: 2,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.98 : 7,783.02 = 1,901.00 : x
  2. Step 2: Convert to fraction form
    5,187.98/7,783.02 = 1,901.00/x
  3. Step 3: Cross multiply
    5,187.98x = 7,783.02 × 1,901.00
  4. Step 4: Simplify right side
    5,187.98x = 14,795,540.48
  5. Step 5: Solve for x
    x = 14,795,540.48/5,187.98
  6. Step 6: Final answer
    x = 2,851.89

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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.