Home / 2,256.79-3,386.48-1,216.79

Finding the Fourth Proportional to 2,256.79, 3,386.48 and 1,216.79

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Solution

The fourth proportional to 2,256.79, 3,386.48 and 1,216.79 is: 1,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.79 : 3,386.48 = 1,216.79 : x
  2. Step 2: Convert to fraction form
    2,256.79/3,386.48 = 1,216.79/x
  3. Step 3: Cross multiply
    2,256.79x = 3,386.48 × 1,216.79
  4. Step 4: Simplify right side
    2,256.79x = 4,120,611.98
  5. Step 5: Solve for x
    x = 4,120,611.98/2,256.79
  6. Step 6: Final answer
    x = 1,825.88

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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.