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Finding the Fourth Proportional to 1,583.96, 2,185.94 and 954.68

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Solution

The fourth proportional to 1,583.96, 2,185.94 and 954.68 is: 1,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.96 : 2,185.94 = 954.68 : x
  2. Step 2: Convert to fraction form
    1,583.96/2,185.94 = 954.68/x
  3. Step 3: Cross multiply
    1,583.96x = 2,185.94 × 954.68
  4. Step 4: Simplify right side
    1,583.96x = 2,086,873.20
  5. Step 5: Solve for x
    x = 2,086,873.20/1,583.96
  6. Step 6: Final answer
    x = 1,317.50

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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.