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Finding the Fourth Proportional to 2,199.70, 3,302.08 and 1,739.02

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Solution

The fourth proportional to 2,199.70, 3,302.08 and 1,739.02 is: 2,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.70 : 3,302.08 = 1,739.02 : x
  2. Step 2: Convert to fraction form
    2,199.70/3,302.08 = 1,739.02/x
  3. Step 3: Cross multiply
    2,199.70x = 3,302.08 × 1,739.02
  4. Step 4: Simplify right side
    2,199.70x = 5,742,383.16
  5. Step 5: Solve for x
    x = 5,742,383.16/2,199.70
  6. Step 6: Final answer
    x = 2,610.53

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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.