Home / 6,320.72-8,722.60-3,668.64

Finding the Fourth Proportional to 6,320.72, 8,722.60 and 3,668.64

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Solution

The fourth proportional to 6,320.72, 8,722.60 and 3,668.64 is: 5,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.72 : 8,722.60 = 3,668.64 : x
  2. Step 2: Convert to fraction form
    6,320.72/8,722.60 = 3,668.64/x
  3. Step 3: Cross multiply
    6,320.72x = 8,722.60 × 3,668.64
  4. Step 4: Simplify right side
    6,320.72x = 32,000,079.26
  5. Step 5: Solve for x
    x = 32,000,079.26/6,320.72
  6. Step 6: Final answer
    x = 5,062.73

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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.