Home / 2,318.42-3,199.43-1,256.18

Finding the Fourth Proportional to 2,318.42, 3,199.43 and 1,256.18

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Solution

The fourth proportional to 2,318.42, 3,199.43 and 1,256.18 is: 1,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.42 : 3,199.43 = 1,256.18 : x
  2. Step 2: Convert to fraction form
    2,318.42/3,199.43 = 1,256.18/x
  3. Step 3: Cross multiply
    2,318.42x = 3,199.43 × 1,256.18
  4. Step 4: Simplify right side
    2,318.42x = 4,019,074.12
  5. Step 5: Solve for x
    x = 4,019,074.12/2,318.42
  6. Step 6: Final answer
    x = 1,733.54

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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.