Home / 2,431.12-3,642.48-1,914.42

Finding the Fourth Proportional to 2,431.12, 3,642.48 and 1,914.42

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Solution

The fourth proportional to 2,431.12, 3,642.48 and 1,914.42 is: 2,868.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.12 : 3,642.48 = 1,914.42 : x
  2. Step 2: Convert to fraction form
    2,431.12/3,642.48 = 1,914.42/x
  3. Step 3: Cross multiply
    2,431.12x = 3,642.48 × 1,914.42
  4. Step 4: Simplify right side
    2,431.12x = 6,973,236.56
  5. Step 5: Solve for x
    x = 6,973,236.56/2,431.12
  6. Step 6: Final answer
    x = 2,868.32

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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.