Home / 2,272.35-3,135.60-1,898.55

Finding the Fourth Proportional to 2,272.35, 3,135.60 and 1,898.55

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Solution

The fourth proportional to 2,272.35, 3,135.60 and 1,898.55 is: 2,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.35 : 3,135.60 = 1,898.55 : x
  2. Step 2: Convert to fraction form
    2,272.35/3,135.60 = 1,898.55/x
  3. Step 3: Cross multiply
    2,272.35x = 3,135.60 × 1,898.55
  4. Step 4: Simplify right side
    2,272.35x = 5,953,093.38
  5. Step 5: Solve for x
    x = 5,953,093.38/2,272.35
  6. Step 6: Final answer
    x = 2,619.80

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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.