Home / 3,548.79-5,322.65-1,239.75

Finding the Fourth Proportional to 3,548.79, 5,322.65 and 1,239.75

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Solution

The fourth proportional to 3,548.79, 5,322.65 and 1,239.75 is: 1,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.79 : 5,322.65 = 1,239.75 : x
  2. Step 2: Convert to fraction form
    3,548.79/5,322.65 = 1,239.75/x
  3. Step 3: Cross multiply
    3,548.79x = 5,322.65 × 1,239.75
  4. Step 4: Simplify right side
    3,548.79x = 6,598,749.14
  5. Step 5: Solve for x
    x = 6,598,749.14/3,548.79
  6. Step 6: Final answer
    x = 1,859.44

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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.