Home / 2,858.28-3,932.46-2,520.63

Finding the Fourth Proportional to 2,858.28, 3,932.46 and 2,520.63

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Solution

The fourth proportional to 2,858.28, 3,932.46 and 2,520.63 is: 3,467.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.28 : 3,932.46 = 2,520.63 : x
  2. Step 2: Convert to fraction form
    2,858.28/3,932.46 = 2,520.63/x
  3. Step 3: Cross multiply
    2,858.28x = 3,932.46 × 2,520.63
  4. Step 4: Simplify right side
    2,858.28x = 9,912,276.65
  5. Step 5: Solve for x
    x = 9,912,276.65/2,858.28
  6. Step 6: Final answer
    x = 3,467.92

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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.