Home / 2,217.07-3,059.52-1,272.86

Finding the Fourth Proportional to 2,217.07, 3,059.52 and 1,272.86

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Solution

The fourth proportional to 2,217.07, 3,059.52 and 1,272.86 is: 1,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.07 : 3,059.52 = 1,272.86 : x
  2. Step 2: Convert to fraction form
    2,217.07/3,059.52 = 1,272.86/x
  3. Step 3: Cross multiply
    2,217.07x = 3,059.52 × 1,272.86
  4. Step 4: Simplify right side
    2,217.07x = 3,894,356.40
  5. Step 5: Solve for x
    x = 3,894,356.40/2,217.07
  6. Step 6: Final answer
    x = 1,756.53

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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.