Home / 4,305.40-5,940.53-2,815.50

Finding the Fourth Proportional to 4,305.40, 5,940.53 and 2,815.50

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Solution

The fourth proportional to 4,305.40, 5,940.53 and 2,815.50 is: 3,884.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.40 : 5,940.53 = 2,815.50 : x
  2. Step 2: Convert to fraction form
    4,305.40/5,940.53 = 2,815.50/x
  3. Step 3: Cross multiply
    4,305.40x = 5,940.53 × 2,815.50
  4. Step 4: Simplify right side
    4,305.40x = 16,725,562.22
  5. Step 5: Solve for x
    x = 16,725,562.22/4,305.40
  6. Step 6: Final answer
    x = 3,884.79

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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.