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Finding the Fourth Proportional to 2,845.80, 4,268.36 and 897.92

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Solution

The fourth proportional to 2,845.80, 4,268.36 and 897.92 is: 1,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.80 : 4,268.36 = 897.92 : x
  2. Step 2: Convert to fraction form
    2,845.80/4,268.36 = 897.92/x
  3. Step 3: Cross multiply
    2,845.80x = 4,268.36 × 897.92
  4. Step 4: Simplify right side
    2,845.80x = 3,832,645.81
  5. Step 5: Solve for x
    x = 3,832,645.81/2,845.80
  6. Step 6: Final answer
    x = 1,346.77

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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.