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Finding the Fourth Proportional to 2,633.58, 3,950.55 and 878.58

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Solution

The fourth proportional to 2,633.58, 3,950.55 and 878.58 is: 1,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,633.58 : 3,950.55 = 878.58 : x
  2. Step 2: Convert to fraction form
    2,633.58/3,950.55 = 878.58/x
  3. Step 3: Cross multiply
    2,633.58x = 3,950.55 × 878.58
  4. Step 4: Simplify right side
    2,633.58x = 3,470,874.22
  5. Step 5: Solve for x
    x = 3,470,874.22/2,633.58
  6. Step 6: Final answer
    x = 1,317.93

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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.