Home / 5,621.40-7,757.46-3,103.47

Finding the Fourth Proportional to 5,621.40, 7,757.46 and 3,103.47

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Solution

The fourth proportional to 5,621.40, 7,757.46 and 3,103.47 is: 4,282.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.40 : 7,757.46 = 3,103.47 : x
  2. Step 2: Convert to fraction form
    5,621.40/7,757.46 = 3,103.47/x
  3. Step 3: Cross multiply
    5,621.40x = 7,757.46 × 3,103.47
  4. Step 4: Simplify right side
    5,621.40x = 24,075,044.39
  5. Step 5: Solve for x
    x = 24,075,044.39/5,621.40
  6. Step 6: Final answer
    x = 4,282.75

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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.