Home / 1,917.24-2,643.54-1,636.56

Finding the Fourth Proportional to 1,917.24, 2,643.54 and 1,636.56

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Solution

The fourth proportional to 1,917.24, 2,643.54 and 1,636.56 is: 2,256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.24 : 2,643.54 = 1,636.56 : x
  2. Step 2: Convert to fraction form
    1,917.24/2,643.54 = 1,636.56/x
  3. Step 3: Cross multiply
    1,917.24x = 2,643.54 × 1,636.56
  4. Step 4: Simplify right side
    1,917.24x = 4,326,311.82
  5. Step 5: Solve for x
    x = 4,326,311.82/1,917.24
  6. Step 6: Final answer
    x = 2,256.53

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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.