Home / 5,620.68-7,756.98-3,103.02

Finding the Fourth Proportional to 5,620.68, 7,756.98 and 3,103.02

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Solution

The fourth proportional to 5,620.68, 7,756.98 and 3,103.02 is: 4,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.68 : 7,756.98 = 3,103.02 : x
  2. Step 2: Convert to fraction form
    5,620.68/7,756.98 = 3,103.02/x
  3. Step 3: Cross multiply
    5,620.68x = 7,756.98 × 3,103.02
  4. Step 4: Simplify right side
    5,620.68x = 24,070,064.08
  5. Step 5: Solve for x
    x = 24,070,064.08/5,620.68
  6. Step 6: Final answer
    x = 4,282.41

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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.