Home / 2,103.36-3,139.74-1,930.02

Finding the Fourth Proportional to 2,103.36, 3,139.74 and 1,930.02

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Solution

The fourth proportional to 2,103.36, 3,139.74 and 1,930.02 is: 2,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.36 : 3,139.74 = 1,930.02 : x
  2. Step 2: Convert to fraction form
    2,103.36/3,139.74 = 1,930.02/x
  3. Step 3: Cross multiply
    2,103.36x = 3,139.74 × 1,930.02
  4. Step 4: Simplify right side
    2,103.36x = 6,059,760.99
  5. Step 5: Solve for x
    x = 6,059,760.99/2,103.36
  6. Step 6: Final answer
    x = 2,880.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.