Home / 3,228.51-4,455-1,812.22

Finding the Fourth Proportional to 3,228.51, 4,455 and 1,812.22

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Solution

The fourth proportional to 3,228.51, 4,455 and 1,812.22 is: 2,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.51 : 4,455 = 1,812.22 : x
  2. Step 2: Convert to fraction form
    3,228.51/4,455 = 1,812.22/x
  3. Step 3: Cross multiply
    3,228.51x = 4,455 × 1,812.22
  4. Step 4: Simplify right side
    3,228.51x = 8,073,454.02
  5. Step 5: Solve for x
    x = 8,073,454.02/3,228.51
  6. Step 6: Final answer
    x = 2,500.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.