Home / 4,758.90-7,139.37-2,419.23

Finding the Fourth Proportional to 4,758.90, 7,139.37 and 2,419.23

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Solution

The fourth proportional to 4,758.90, 7,139.37 and 2,419.23 is: 3,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.90 : 7,139.37 = 2,419.23 : x
  2. Step 2: Convert to fraction form
    4,758.90/7,139.37 = 2,419.23/x
  3. Step 3: Cross multiply
    4,758.90x = 7,139.37 × 2,419.23
  4. Step 4: Simplify right side
    4,758.90x = 17,271,778.09
  5. Step 5: Solve for x
    x = 17,271,778.09/4,758.90
  6. Step 6: Final answer
    x = 3,629.36

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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.