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Finding the Fourth Proportional to 1,597.32, 2,395.41 and 816.54

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Solution

The fourth proportional to 1,597.32, 2,395.41 and 816.54 is: 1,224.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.32 : 2,395.41 = 816.54 : x
  2. Step 2: Convert to fraction form
    1,597.32/2,395.41 = 816.54/x
  3. Step 3: Cross multiply
    1,597.32x = 2,395.41 × 816.54
  4. Step 4: Simplify right side
    1,597.32x = 1,955,937.29
  5. Step 5: Solve for x
    x = 1,955,937.29/1,597.32
  6. Step 6: Final answer
    x = 1,224.51

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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.