Home / 5,025.20-7,528.80-2,422.40

Finding the Fourth Proportional to 5,025.20, 7,528.80 and 2,422.40

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Solution

The fourth proportional to 5,025.20, 7,528.80 and 2,422.40 is: 3,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,025.20 : 7,528.80 = 2,422.40 : x
  2. Step 2: Convert to fraction form
    5,025.20/7,528.80 = 2,422.40/x
  3. Step 3: Cross multiply
    5,025.20x = 7,528.80 × 2,422.40
  4. Step 4: Simplify right side
    5,025.20x = 18,237,765.12
  5. Step 5: Solve for x
    x = 18,237,765.12/5,025.20
  6. Step 6: Final answer
    x = 3,629.26

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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.