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Finding the Fourth Proportional to 2,265.86, 3,396.86 and 880.19

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Solution

The fourth proportional to 2,265.86, 3,396.86 and 880.19 is: 1,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.86 : 3,396.86 = 880.19 : x
  2. Step 2: Convert to fraction form
    2,265.86/3,396.86 = 880.19/x
  3. Step 3: Cross multiply
    2,265.86x = 3,396.86 × 880.19
  4. Step 4: Simplify right side
    2,265.86x = 2,989,883.32
  5. Step 5: Solve for x
    x = 2,989,883.32/2,265.86
  6. Step 6: Final answer
    x = 1,319.54

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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.