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Finding the Fourth Proportional to 4,643.21, 6,963.08 and 1,868.94

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Solution

The fourth proportional to 4,643.21, 6,963.08 and 1,868.94 is: 2,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.21 : 6,963.08 = 1,868.94 : x
  2. Step 2: Convert to fraction form
    4,643.21/6,963.08 = 1,868.94/x
  3. Step 3: Cross multiply
    4,643.21x = 6,963.08 × 1,868.94
  4. Step 4: Simplify right side
    4,643.21x = 13,013,569.39
  5. Step 5: Solve for x
    x = 13,013,569.39/4,643.21
  6. Step 6: Final answer
    x = 2,802.71

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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.