Home / 3,730.72-5,146.24-3,289.68

Finding the Fourth Proportional to 3,730.72, 5,146.24 and 3,289.68

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Solution

The fourth proportional to 3,730.72, 5,146.24 and 3,289.68 is: 4,537.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.72 : 5,146.24 = 3,289.68 : x
  2. Step 2: Convert to fraction form
    3,730.72/5,146.24 = 3,289.68/x
  3. Step 3: Cross multiply
    3,730.72x = 5,146.24 × 3,289.68
  4. Step 4: Simplify right side
    3,730.72x = 16,929,482.80
  5. Step 5: Solve for x
    x = 16,929,482.80/3,730.72
  6. Step 6: Final answer
    x = 4,537.86

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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.