Home / 2,216.86-3,059.40-1,272.95

Finding the Fourth Proportional to 2,216.86, 3,059.40 and 1,272.95

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Solution

The fourth proportional to 2,216.86, 3,059.40 and 1,272.95 is: 1,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.86 : 3,059.40 = 1,272.95 : x
  2. Step 2: Convert to fraction form
    2,216.86/3,059.40 = 1,272.95/x
  3. Step 3: Cross multiply
    2,216.86x = 3,059.40 × 1,272.95
  4. Step 4: Simplify right side
    2,216.86x = 3,894,464.18
  5. Step 5: Solve for x
    x = 3,894,464.18/2,216.86
  6. Step 6: Final answer
    x = 1,756.75

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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.