Home / 3,239.55-4,471.34-1,913.85

Finding the Fourth Proportional to 3,239.55, 4,471.34 and 1,913.85

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Solution

The fourth proportional to 3,239.55, 4,471.34 and 1,913.85 is: 2,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.55 : 4,471.34 = 1,913.85 : x
  2. Step 2: Convert to fraction form
    3,239.55/4,471.34 = 1,913.85/x
  3. Step 3: Cross multiply
    3,239.55x = 4,471.34 × 1,913.85
  4. Step 4: Simplify right side
    3,239.55x = 8,557,464.49
  5. Step 5: Solve for x
    x = 8,557,464.49/3,239.55
  6. Step 6: Final answer
    x = 2,641.56

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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.