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Finding the Fourth Proportional to 4,719, 6,511.96 and 2,623

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Solution

The fourth proportional to 4,719, 6,511.96 and 2,623 is: 3,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719 : 6,511.96 = 2,623 : x
  2. Step 2: Convert to fraction form
    4,719/6,511.96 = 2,623/x
  3. Step 3: Cross multiply
    4,719x = 6,511.96 × 2,623
  4. Step 4: Simplify right side
    4,719x = 17,080,871.08
  5. Step 5: Solve for x
    x = 17,080,871.08/4,719
  6. Step 6: Final answer
    x = 3,619.60

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Why These Related Problems?

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