Home / 5,621.11-7,756.59-3,103.33

Finding the Fourth Proportional to 5,621.11, 7,756.59 and 3,103.33

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Solution

The fourth proportional to 5,621.11, 7,756.59 and 3,103.33 is: 4,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.11 : 7,756.59 = 3,103.33 : x
  2. Step 2: Convert to fraction form
    5,621.11/7,756.59 = 3,103.33/x
  3. Step 3: Cross multiply
    5,621.11x = 7,756.59 × 3,103.33
  4. Step 4: Simplify right side
    5,621.11x = 24,071,219.66
  5. Step 5: Solve for x
    x = 24,071,219.66/5,621.11
  6. Step 6: Final answer
    x = 4,282.29

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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.