Home / 4,860.45-7,286.40-2,881.20

Finding the Fourth Proportional to 4,860.45, 7,286.40 and 2,881.20

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Solution

The fourth proportional to 4,860.45, 7,286.40 and 2,881.20 is: 4,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860.45 : 7,286.40 = 2,881.20 : x
  2. Step 2: Convert to fraction form
    4,860.45/7,286.40 = 2,881.20/x
  3. Step 3: Cross multiply
    4,860.45x = 7,286.40 × 2,881.20
  4. Step 4: Simplify right side
    4,860.45x = 20,993,575.68
  5. Step 5: Solve for x
    x = 20,993,575.68/4,860.45
  6. Step 6: Final answer
    x = 4,319.27

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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.