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Finding the Fourth Proportional to 3,219.01, 4,828.51 and 910.51

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Solution

The fourth proportional to 3,219.01, 4,828.51 and 910.51 is: 1,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.01 : 4,828.51 = 910.51 : x
  2. Step 2: Convert to fraction form
    3,219.01/4,828.51 = 910.51/x
  3. Step 3: Cross multiply
    3,219.01x = 4,828.51 × 910.51
  4. Step 4: Simplify right side
    3,219.01x = 4,396,406.64
  5. Step 5: Solve for x
    x = 4,396,406.64/3,219.01
  6. Step 6: Final answer
    x = 1,365.76

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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.