Home / 4,359.20-6,538.80-4,286.30

Finding the Fourth Proportional to 4,359.20, 6,538.80 and 4,286.30

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Solution

The fourth proportional to 4,359.20, 6,538.80 and 4,286.30 is: 6,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,359.20 : 6,538.80 = 4,286.30 : x
  2. Step 2: Convert to fraction form
    4,359.20/6,538.80 = 4,286.30/x
  3. Step 3: Cross multiply
    4,359.20x = 6,538.80 × 4,286.30
  4. Step 4: Simplify right side
    4,359.20x = 28,027,258.44
  5. Step 5: Solve for x
    x = 28,027,258.44/4,359.20
  6. Step 6: Final answer
    x = 6,429.45

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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.