Home / 4,982.40-7,458.84-3,689.64

Finding the Fourth Proportional to 4,982.40, 7,458.84 and 3,689.64

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Solution

The fourth proportional to 4,982.40, 7,458.84 and 3,689.64 is: 5,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.40 : 7,458.84 = 3,689.64 : x
  2. Step 2: Convert to fraction form
    4,982.40/7,458.84 = 3,689.64/x
  3. Step 3: Cross multiply
    4,982.40x = 7,458.84 × 3,689.64
  4. Step 4: Simplify right side
    4,982.40x = 27,520,434.42
  5. Step 5: Solve for x
    x = 27,520,434.42/4,982.40
  6. Step 6: Final answer
    x = 5,523.53

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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.