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Finding the Fourth Proportional to 4,267.56, 6,403.32 and 1,803

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Solution

The fourth proportional to 4,267.56, 6,403.32 and 1,803 is: 2,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.56 : 6,403.32 = 1,803 : x
  2. Step 2: Convert to fraction form
    4,267.56/6,403.32 = 1,803/x
  3. Step 3: Cross multiply
    4,267.56x = 6,403.32 × 1,803
  4. Step 4: Simplify right side
    4,267.56x = 11,545,185.96
  5. Step 5: Solve for x
    x = 11,545,185.96/4,267.56
  6. Step 6: Final answer
    x = 2,705.34

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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.