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Finding the Fourth Proportional to 1,597.65, 2,396.46 and 443.40

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Solution

The fourth proportional to 1,597.65, 2,396.46 and 443.40 is: 665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.65 : 2,396.46 = 443.40 : x
  2. Step 2: Convert to fraction form
    1,597.65/2,396.46 = 443.40/x
  3. Step 3: Cross multiply
    1,597.65x = 2,396.46 × 443.40
  4. Step 4: Simplify right side
    1,597.65x = 1,062,590.36
  5. Step 5: Solve for x
    x = 1,062,590.36/1,597.65
  6. Step 6: Final answer
    x = 665.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.