Home / 3,228.49-4,455.69-1,812.57

Finding the Fourth Proportional to 3,228.49, 4,455.69 and 1,812.57

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Solution

The fourth proportional to 3,228.49, 4,455.69 and 1,812.57 is: 2,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.49 : 4,455.69 = 1,812.57 : x
  2. Step 2: Convert to fraction form
    3,228.49/4,455.69 = 1,812.57/x
  3. Step 3: Cross multiply
    3,228.49x = 4,455.69 × 1,812.57
  4. Step 4: Simplify right side
    3,228.49x = 8,076,250.02
  5. Step 5: Solve for x
    x = 8,076,250.02/3,228.49
  6. Step 6: Final answer
    x = 2,501.56

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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.