Home / 5,150.16-7,720.92-2,074.32

Finding the Fourth Proportional to 5,150.16, 7,720.92 and 2,074.32

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Solution

The fourth proportional to 5,150.16, 7,720.92 and 2,074.32 is: 3,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.16 : 7,720.92 = 2,074.32 : x
  2. Step 2: Convert to fraction form
    5,150.16/7,720.92 = 2,074.32/x
  3. Step 3: Cross multiply
    5,150.16x = 7,720.92 × 2,074.32
  4. Step 4: Simplify right side
    5,150.16x = 16,015,658.77
  5. Step 5: Solve for x
    x = 16,015,658.77/5,150.16
  6. Step 6: Final answer
    x = 3,109.74

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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.