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Finding the Fourth Proportional to 4,322.82, 6,483.60 and 1,400.70

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Solution

The fourth proportional to 4,322.82, 6,483.60 and 1,400.70 is: 2,100.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.82 : 6,483.60 = 1,400.70 : x
  2. Step 2: Convert to fraction form
    4,322.82/6,483.60 = 1,400.70/x
  3. Step 3: Cross multiply
    4,322.82x = 6,483.60 × 1,400.70
  4. Step 4: Simplify right side
    4,322.82x = 9,081,578.52
  5. Step 5: Solve for x
    x = 9,081,578.52/4,322.82
  6. Step 6: Final answer
    x = 2,100.85

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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.