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Finding the Fourth Proportional to 4,677.94, 7,017.99 and 1,390.96

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Solution

The fourth proportional to 4,677.94, 7,017.99 and 1,390.96 is: 2,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.94 : 7,017.99 = 1,390.96 : x
  2. Step 2: Convert to fraction form
    4,677.94/7,017.99 = 1,390.96/x
  3. Step 3: Cross multiply
    4,677.94x = 7,017.99 × 1,390.96
  4. Step 4: Simplify right side
    4,677.94x = 9,761,743.37
  5. Step 5: Solve for x
    x = 9,761,743.37/4,677.94
  6. Step 6: Final answer
    x = 2,086.76

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