Home / 1,896.40-2,616.59-1,150.21

Finding the Fourth Proportional to 1,896.40, 2,616.59 and 1,150.21

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Solution

The fourth proportional to 1,896.40, 2,616.59 and 1,150.21 is: 1,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.40 : 2,616.59 = 1,150.21 : x
  2. Step 2: Convert to fraction form
    1,896.40/2,616.59 = 1,150.21/x
  3. Step 3: Cross multiply
    1,896.40x = 2,616.59 × 1,150.21
  4. Step 4: Simplify right side
    1,896.40x = 3,009,634.13
  5. Step 5: Solve for x
    x = 3,009,634.13/1,896.40
  6. Step 6: Final answer
    x = 1,587.02

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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.