Home / 2,257.12-3,386.28-1,216.68

Finding the Fourth Proportional to 2,257.12, 3,386.28 and 1,216.68

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Solution

The fourth proportional to 2,257.12, 3,386.28 and 1,216.68 is: 1,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.12 : 3,386.28 = 1,216.68 : x
  2. Step 2: Convert to fraction form
    2,257.12/3,386.28 = 1,216.68/x
  3. Step 3: Cross multiply
    2,257.12x = 3,386.28 × 1,216.68
  4. Step 4: Simplify right side
    2,257.12x = 4,120,019.15
  5. Step 5: Solve for x
    x = 4,120,019.15/2,257.12
  6. Step 6: Final answer
    x = 1,825.34

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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.