Home / 3,276.40-4,907.40-2,540.20

Finding the Fourth Proportional to 3,276.40, 4,907.40 and 2,540.20

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Solution

The fourth proportional to 3,276.40, 4,907.40 and 2,540.20 is: 3,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.40 : 4,907.40 = 2,540.20 : x
  2. Step 2: Convert to fraction form
    3,276.40/4,907.40 = 2,540.20/x
  3. Step 3: Cross multiply
    3,276.40x = 4,907.40 × 2,540.20
  4. Step 4: Simplify right side
    3,276.40x = 12,465,777.48
  5. Step 5: Solve for x
    x = 12,465,777.48/3,276.40
  6. Step 6: Final answer
    x = 3,804.72

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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.