Home / 5,169.21-7,130.32-4,507.64

Finding the Fourth Proportional to 5,169.21, 7,130.32 and 4,507.64

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Solution

The fourth proportional to 5,169.21, 7,130.32 and 4,507.64 is: 6,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.21 : 7,130.32 = 4,507.64 : x
  2. Step 2: Convert to fraction form
    5,169.21/7,130.32 = 4,507.64/x
  3. Step 3: Cross multiply
    5,169.21x = 7,130.32 × 4,507.64
  4. Step 4: Simplify right side
    5,169.21x = 32,140,922.20
  5. Step 5: Solve for x
    x = 32,140,922.20/5,169.21
  6. Step 6: Final answer
    x = 6,217.76

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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.