Home / 2,265.19-3,396.86-878.26

Finding the Fourth Proportional to 2,265.19, 3,396.86 and 878.26

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Solution

The fourth proportional to 2,265.19, 3,396.86 and 878.26 is: 1,317.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.19 : 3,396.86 = 878.26 : x
  2. Step 2: Convert to fraction form
    2,265.19/3,396.86 = 878.26/x
  3. Step 3: Cross multiply
    2,265.19x = 3,396.86 × 878.26
  4. Step 4: Simplify right side
    2,265.19x = 2,983,326.26
  5. Step 5: Solve for x
    x = 2,983,326.26/2,265.19
  6. Step 6: Final answer
    x = 1,317.03

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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.