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Finding the Fourth Proportional to 3,384.99, 5,068.17 and 2,891.30

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Solution

The fourth proportional to 3,384.99, 5,068.17 and 2,891.30 is: 4,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.99 : 5,068.17 = 2,891.30 : x
  2. Step 2: Convert to fraction form
    3,384.99/5,068.17 = 2,891.30/x
  3. Step 3: Cross multiply
    3,384.99x = 5,068.17 × 2,891.30
  4. Step 4: Simplify right side
    3,384.99x = 14,653,574.58
  5. Step 5: Solve for x
    x = 14,653,574.58/3,384.99
  6. Step 6: Final answer
    x = 4,328.99

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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.