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Finding the Fourth Proportional to 3,483.87, 4,807.58 and 1,911.99

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Solution

The fourth proportional to 3,483.87, 4,807.58 and 1,911.99 is: 2,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.87 : 4,807.58 = 1,911.99 : x
  2. Step 2: Convert to fraction form
    3,483.87/4,807.58 = 1,911.99/x
  3. Step 3: Cross multiply
    3,483.87x = 4,807.58 × 1,911.99
  4. Step 4: Simplify right side
    3,483.87x = 9,192,044.88
  5. Step 5: Solve for x
    x = 9,192,044.88/3,483.87
  6. Step 6: Final answer
    x = 2,638.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.