Home / 1,945.12-2,682.12-1,446.16

Finding the Fourth Proportional to 1,945.12, 2,682.12 and 1,446.16

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Solution

The fourth proportional to 1,945.12, 2,682.12 and 1,446.16 is: 1,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.12 : 2,682.12 = 1,446.16 : x
  2. Step 2: Convert to fraction form
    1,945.12/2,682.12 = 1,446.16/x
  3. Step 3: Cross multiply
    1,945.12x = 2,682.12 × 1,446.16
  4. Step 4: Simplify right side
    1,945.12x = 3,878,774.66
  5. Step 5: Solve for x
    x = 3,878,774.66/1,945.12
  6. Step 6: Final answer
    x = 1,994.11

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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.