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Finding the Fourth Proportional to 3,177.33, 4,765.99 and 868.83

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Solution

The fourth proportional to 3,177.33, 4,765.99 and 868.83 is: 1,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.33 : 4,765.99 = 868.83 : x
  2. Step 2: Convert to fraction form
    3,177.33/4,765.99 = 868.83/x
  3. Step 3: Cross multiply
    3,177.33x = 4,765.99 × 868.83
  4. Step 4: Simplify right side
    3,177.33x = 4,140,828.87
  5. Step 5: Solve for x
    x = 4,140,828.87/3,177.33
  6. Step 6: Final answer
    x = 1,303.24

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1.5x scale

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.