Home / 3,285.21-4,533.40-1,868.69

Finding the Fourth Proportional to 3,285.21, 4,533.40 and 1,868.69

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Solution

The fourth proportional to 3,285.21, 4,533.40 and 1,868.69 is: 2,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.21 : 4,533.40 = 1,868.69 : x
  2. Step 2: Convert to fraction form
    3,285.21/4,533.40 = 1,868.69/x
  3. Step 3: Cross multiply
    3,285.21x = 4,533.40 × 1,868.69
  4. Step 4: Simplify right side
    3,285.21x = 8,471,519.25
  5. Step 5: Solve for x
    x = 8,471,519.25/3,285.21
  6. Step 6: Final answer
    x = 2,578.68

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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.