Home / 2,103.44-3,155.14-1,007.20

Finding the Fourth Proportional to 2,103.44, 3,155.14 and 1,007.20

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Solution

The fourth proportional to 2,103.44, 3,155.14 and 1,007.20 is: 1,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.44 : 3,155.14 = 1,007.20 : x
  2. Step 2: Convert to fraction form
    2,103.44/3,155.14 = 1,007.20/x
  3. Step 3: Cross multiply
    2,103.44x = 3,155.14 × 1,007.20
  4. Step 4: Simplify right side
    2,103.44x = 3,177,857.01
  5. Step 5: Solve for x
    x = 3,177,857.01/2,103.44
  6. Step 6: Final answer
    x = 1,510.79

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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.