Home / 1,896.40-2,616.99-1,057.07

Finding the Fourth Proportional to 1,896.40, 2,616.99 and 1,057.07

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Solution

The fourth proportional to 1,896.40, 2,616.99 and 1,057.07 is: 1,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.40 : 2,616.99 = 1,057.07 : x
  2. Step 2: Convert to fraction form
    1,896.40/2,616.99 = 1,057.07/x
  3. Step 3: Cross multiply
    1,896.40x = 2,616.99 × 1,057.07
  4. Step 4: Simplify right side
    1,896.40x = 2,766,335.42
  5. Step 5: Solve for x
    x = 2,766,335.42/1,896.40
  6. Step 6: Final answer
    x = 1,458.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.