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Finding the Fourth Proportional to 1,957.22, 2,935.85 and 983.11

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Solution

The fourth proportional to 1,957.22, 2,935.85 and 983.11 is: 1,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.22 : 2,935.85 = 983.11 : x
  2. Step 2: Convert to fraction form
    1,957.22/2,935.85 = 983.11/x
  3. Step 3: Cross multiply
    1,957.22x = 2,935.85 × 983.11
  4. Step 4: Simplify right side
    1,957.22x = 2,886,251.24
  5. Step 5: Solve for x
    x = 2,886,251.24/1,957.22
  6. Step 6: Final answer
    x = 1,474.67

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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.