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Finding the Fourth Proportional to 1,735.01, 2,394.36 and 989.07

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Solution

The fourth proportional to 1,735.01, 2,394.36 and 989.07 is: 1,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.01 : 2,394.36 = 989.07 : x
  2. Step 2: Convert to fraction form
    1,735.01/2,394.36 = 989.07/x
  3. Step 3: Cross multiply
    1,735.01x = 2,394.36 × 989.07
  4. Step 4: Simplify right side
    1,735.01x = 2,368,189.65
  5. Step 5: Solve for x
    x = 2,368,189.65/1,735.01
  6. Step 6: Final answer
    x = 1,364.95

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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.