Home / 1,659.41-2,289.88-913.37

Finding the Fourth Proportional to 1,659.41, 2,289.88 and 913.37

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Solution

The fourth proportional to 1,659.41, 2,289.88 and 913.37 is: 1,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659.41 : 2,289.88 = 913.37 : x
  2. Step 2: Convert to fraction form
    1,659.41/2,289.88 = 913.37/x
  3. Step 3: Cross multiply
    1,659.41x = 2,289.88 × 913.37
  4. Step 4: Simplify right side
    1,659.41x = 2,091,497.73
  5. Step 5: Solve for x
    x = 2,091,497.73/1,659.41
  6. Step 6: Final answer
    x = 1,260.39

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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.