Home / 3,120.60-4,297.68-3,052.56

Finding the Fourth Proportional to 3,120.60, 4,297.68 and 3,052.56

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Solution

The fourth proportional to 3,120.60, 4,297.68 and 3,052.56 is: 4,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.60 : 4,297.68 = 3,052.56 : x
  2. Step 2: Convert to fraction form
    3,120.60/4,297.68 = 3,052.56/x
  3. Step 3: Cross multiply
    3,120.60x = 4,297.68 × 3,052.56
  4. Step 4: Simplify right side
    3,120.60x = 13,118,926.06
  5. Step 5: Solve for x
    x = 13,118,926.06/3,120.60
  6. Step 6: Final answer
    x = 4,203.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.