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Finding the Fourth Proportional to 4,643.70, 6,965.85 and 2,456.70

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Solution

The fourth proportional to 4,643.70, 6,965.85 and 2,456.70 is: 3,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.70 : 6,965.85 = 2,456.70 : x
  2. Step 2: Convert to fraction form
    4,643.70/6,965.85 = 2,456.70/x
  3. Step 3: Cross multiply
    4,643.70x = 6,965.85 × 2,456.70
  4. Step 4: Simplify right side
    4,643.70x = 17,113,003.70
  5. Step 5: Solve for x
    x = 17,113,003.70/4,643.70
  6. Step 6: Final answer
    x = 3,685.21

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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.