Home / 2,850.36-4,275.54-1,389.12

Finding the Fourth Proportional to 2,850.36, 4,275.54 and 1,389.12

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Solution

The fourth proportional to 2,850.36, 4,275.54 and 1,389.12 is: 2,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.36 : 4,275.54 = 1,389.12 : x
  2. Step 2: Convert to fraction form
    2,850.36/4,275.54 = 1,389.12/x
  3. Step 3: Cross multiply
    2,850.36x = 4,275.54 × 1,389.12
  4. Step 4: Simplify right side
    2,850.36x = 5,939,238.12
  5. Step 5: Solve for x
    x = 5,939,238.12/2,850.36
  6. Step 6: Final answer
    x = 2,083.68

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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.