Home / 5,155.34-7,727.37-2,656.68

Finding the Fourth Proportional to 5,155.34, 7,727.37 and 2,656.68

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Solution

The fourth proportional to 5,155.34, 7,727.37 and 2,656.68 is: 3,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.34 : 7,727.37 = 2,656.68 : x
  2. Step 2: Convert to fraction form
    5,155.34/7,727.37 = 2,656.68/x
  3. Step 3: Cross multiply
    5,155.34x = 7,727.37 × 2,656.68
  4. Step 4: Simplify right side
    5,155.34x = 20,529,149.33
  5. Step 5: Solve for x
    x = 20,529,149.33/5,155.34
  6. Step 6: Final answer
    x = 3,982.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.