Home / 6,145.26-8,479.65-3,628.72

Finding the Fourth Proportional to 6,145.26, 8,479.65 and 3,628.72

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Solution

The fourth proportional to 6,145.26, 8,479.65 and 3,628.72 is: 5,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.26 : 8,479.65 = 3,628.72 : x
  2. Step 2: Convert to fraction form
    6,145.26/8,479.65 = 3,628.72/x
  3. Step 3: Cross multiply
    6,145.26x = 8,479.65 × 3,628.72
  4. Step 4: Simplify right side
    6,145.26x = 30,770,275.55
  5. Step 5: Solve for x
    x = 30,770,275.55/6,145.26
  6. Step 6: Final answer
    x = 5,007.16

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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.