Home / 2,895.36-3,991.68-1,962.24

Finding the Fourth Proportional to 2,895.36, 3,991.68 and 1,962.24

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Solution

The fourth proportional to 2,895.36, 3,991.68 and 1,962.24 is: 2,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.36 : 3,991.68 = 1,962.24 : x
  2. Step 2: Convert to fraction form
    2,895.36/3,991.68 = 1,962.24/x
  3. Step 3: Cross multiply
    2,895.36x = 3,991.68 × 1,962.24
  4. Step 4: Simplify right side
    2,895.36x = 7,832,634.16
  5. Step 5: Solve for x
    x = 7,832,634.16/2,895.36
  6. Step 6: Final answer
    x = 2,705.24

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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.