Home / 1,206.52-1,661.66-1,040.67

Finding the Fourth Proportional to 1,206.52, 1,661.66 and 1,040.67

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Solution

The fourth proportional to 1,206.52, 1,661.66 and 1,040.67 is: 1,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.52 : 1,661.66 = 1,040.67 : x
  2. Step 2: Convert to fraction form
    1,206.52/1,661.66 = 1,040.67/x
  3. Step 3: Cross multiply
    1,206.52x = 1,661.66 × 1,040.67
  4. Step 4: Simplify right side
    1,206.52x = 1,729,234.51
  5. Step 5: Solve for x
    x = 1,729,234.51/1,206.52
  6. Step 6: Final answer
    x = 1,433.25

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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.