Home / 1,636.74-2,455.22-983.07

Finding the Fourth Proportional to 1,636.74, 2,455.22 and 983.07

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Solution

The fourth proportional to 1,636.74, 2,455.22 and 983.07 is: 1,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.74 : 2,455.22 = 983.07 : x
  2. Step 2: Convert to fraction form
    1,636.74/2,455.22 = 983.07/x
  3. Step 3: Cross multiply
    1,636.74x = 2,455.22 × 983.07
  4. Step 4: Simplify right side
    1,636.74x = 2,413,655.58
  5. Step 5: Solve for x
    x = 2,413,655.58/1,636.74
  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.