Home / 4,252.40-6,378.60-2,940.20

Finding the Fourth Proportional to 4,252.40, 6,378.60 and 2,940.20

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Solution

The fourth proportional to 4,252.40, 6,378.60 and 2,940.20 is: 4,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,252.40 : 6,378.60 = 2,940.20 : x
  2. Step 2: Convert to fraction form
    4,252.40/6,378.60 = 2,940.20/x
  3. Step 3: Cross multiply
    4,252.40x = 6,378.60 × 2,940.20
  4. Step 4: Simplify right side
    4,252.40x = 18,754,359.72
  5. Step 5: Solve for x
    x = 18,754,359.72/4,252.40
  6. Step 6: Final answer
    x = 4,410.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.