Home / 3,228.25-4,454.95-1,831

Finding the Fourth Proportional to 3,228.25, 4,454.95 and 1,831

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Solution

The fourth proportional to 3,228.25, 4,454.95 and 1,831 is: 2,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.25 : 4,454.95 = 1,831 : x
  2. Step 2: Convert to fraction form
    3,228.25/4,454.95 = 1,831/x
  3. Step 3: Cross multiply
    3,228.25x = 4,454.95 × 1,831
  4. Step 4: Simplify right side
    3,228.25x = 8,157,013.45
  5. Step 5: Solve for x
    x = 8,157,013.45/3,228.25
  6. Step 6: Final answer
    x = 2,526.76

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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.