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Finding the Fourth Proportional to 3,167.40, 4,394.88 and 3,076.68

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Solution

The fourth proportional to 3,167.40, 4,394.88 and 3,076.68 is: 4,269.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.40 : 4,394.88 = 3,076.68 : x
  2. Step 2: Convert to fraction form
    3,167.40/4,394.88 = 3,076.68/x
  3. Step 3: Cross multiply
    3,167.40x = 4,394.88 × 3,076.68
  4. Step 4: Simplify right side
    3,167.40x = 13,521,639.40
  5. Step 5: Solve for x
    x = 13,521,639.40/3,167.40
  6. Step 6: Final answer
    x = 4,269.00

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.