Home / 2,272.15-3,135.64-1,328.63

Finding the Fourth Proportional to 2,272.15, 3,135.64 and 1,328.63

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Solution

The fourth proportional to 2,272.15, 3,135.64 and 1,328.63 is: 1,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.15 : 3,135.64 = 1,328.63 : x
  2. Step 2: Convert to fraction form
    2,272.15/3,135.64 = 1,328.63/x
  3. Step 3: Cross multiply
    2,272.15x = 3,135.64 × 1,328.63
  4. Step 4: Simplify right side
    2,272.15x = 4,166,105.37
  5. Step 5: Solve for x
    x = 4,166,105.37/2,272.15
  6. Step 6: Final answer
    x = 1,833.55

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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.