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Finding the Fourth Proportional to 3,855.03, 5,783.46 and 1,663.98

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Solution

The fourth proportional to 3,855.03, 5,783.46 and 1,663.98 is: 2,496.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.03 : 5,783.46 = 1,663.98 : x
  2. Step 2: Convert to fraction form
    3,855.03/5,783.46 = 1,663.98/x
  3. Step 3: Cross multiply
    3,855.03x = 5,783.46 × 1,663.98
  4. Step 4: Simplify right side
    3,855.03x = 9,623,561.77
  5. Step 5: Solve for x
    x = 9,623,561.77/3,855.03
  6. Step 6: Final answer
    x = 2,496.36

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1.5x scale

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.