Home / 2,658.12-4,002.62-1,969.67

Finding the Fourth Proportional to 2,658.12, 4,002.62 and 1,969.67

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Solution

The fourth proportional to 2,658.12, 4,002.62 and 1,969.67 is: 2,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.12 : 4,002.62 = 1,969.67 : x
  2. Step 2: Convert to fraction form
    2,658.12/4,002.62 = 1,969.67/x
  3. Step 3: Cross multiply
    2,658.12x = 4,002.62 × 1,969.67
  4. Step 4: Simplify right side
    2,658.12x = 7,883,840.54
  5. Step 5: Solve for x
    x = 7,883,840.54/2,658.12
  6. Step 6: Final answer
    x = 2,965.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.