Home / 5,621.51-7,757.64-3,103.63

Finding the Fourth Proportional to 5,621.51, 7,757.64 and 3,103.63

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Solution

The fourth proportional to 5,621.51, 7,757.64 and 3,103.63 is: 4,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.51 : 7,757.64 = 3,103.63 : x
  2. Step 2: Convert to fraction form
    5,621.51/7,757.64 = 3,103.63/x
  3. Step 3: Cross multiply
    5,621.51x = 7,757.64 × 3,103.63
  4. Step 4: Simplify right side
    5,621.51x = 24,076,805.45
  5. Step 5: Solve for x
    x = 24,076,805.45/5,621.51
  6. Step 6: Final answer
    x = 4,282.98

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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.