Home / 5,621.42-7,757.55-3,103.58

Finding the Fourth Proportional to 5,621.42, 7,757.55 and 3,103.58

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Solution

The fourth proportional to 5,621.42, 7,757.55 and 3,103.58 is: 4,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.42 : 7,757.55 = 3,103.58 : x
  2. Step 2: Convert to fraction form
    5,621.42/7,757.55 = 3,103.58/x
  3. Step 3: Cross multiply
    5,621.42x = 7,757.55 × 3,103.58
  4. Step 4: Simplify right side
    5,621.42x = 24,076,138.24
  5. Step 5: Solve for x
    x = 24,076,138.24/5,621.42
  6. Step 6: Final answer
    x = 4,282.93

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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.