Home / 1,921.26-2,654.52-1,709.55

Finding the Fourth Proportional to 1,921.26, 2,654.52 and 1,709.55

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Solution

The fourth proportional to 1,921.26, 2,654.52 and 1,709.55 is: 2,362.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.26 : 2,654.52 = 1,709.55 : x
  2. Step 2: Convert to fraction form
    1,921.26/2,654.52 = 1,709.55/x
  3. Step 3: Cross multiply
    1,921.26x = 2,654.52 × 1,709.55
  4. Step 4: Simplify right side
    1,921.26x = 4,538,034.67
  5. Step 5: Solve for x
    x = 4,538,034.67/1,921.26
  6. Step 6: Final answer
    x = 2,362.01

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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.