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Finding the Fourth Proportional to 1,597.08, 2,396.36 and 816.68

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Solution

The fourth proportional to 1,597.08, 2,396.36 and 816.68 is: 1,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.08 : 2,396.36 = 816.68 : x
  2. Step 2: Convert to fraction form
    1,597.08/2,396.36 = 816.68/x
  3. Step 3: Cross multiply
    1,597.08x = 2,396.36 × 816.68
  4. Step 4: Simplify right side
    1,597.08x = 1,957,059.28
  5. Step 5: Solve for x
    x = 1,957,059.28/1,597.08
  6. Step 6: Final answer
    x = 1,225.40

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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.