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Finding the Fourth Proportional to 3,182.64, 4,773.41 and 842.67

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Solution

The fourth proportional to 3,182.64, 4,773.41 and 842.67 is: 1,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.64 : 4,773.41 = 842.67 : x
  2. Step 2: Convert to fraction form
    3,182.64/4,773.41 = 842.67/x
  3. Step 3: Cross multiply
    3,182.64x = 4,773.41 × 842.67
  4. Step 4: Simplify right side
    3,182.64x = 4,022,411.51
  5. Step 5: Solve for x
    x = 4,022,411.51/3,182.64
  6. Step 6: Final answer
    x = 1,263.86

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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.