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Finding the Fourth Proportional to 2,174.98, 3,259.87 and 1,003.80

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Solution

The fourth proportional to 2,174.98, 3,259.87 and 1,003.80 is: 1,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.98 : 3,259.87 = 1,003.80 : x
  2. Step 2: Convert to fraction form
    2,174.98/3,259.87 = 1,003.80/x
  3. Step 3: Cross multiply
    2,174.98x = 3,259.87 × 1,003.80
  4. Step 4: Simplify right side
    2,174.98x = 3,272,257.51
  5. Step 5: Solve for x
    x = 3,272,257.51/2,174.98
  6. Step 6: Final answer
    x = 1,504.50

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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.