Home / 5,103.46-7,658.16-1,985.62

Finding the Fourth Proportional to 5,103.46, 7,658.16 and 1,985.62

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Solution

The fourth proportional to 5,103.46, 7,658.16 and 1,985.62 is: 2,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.46 : 7,658.16 = 1,985.62 : x
  2. Step 2: Convert to fraction form
    5,103.46/7,658.16 = 1,985.62/x
  3. Step 3: Cross multiply
    5,103.46x = 7,658.16 × 1,985.62
  4. Step 4: Simplify right side
    5,103.46x = 15,206,183.43
  5. Step 5: Solve for x
    x = 15,206,183.43/5,103.46
  6. Step 6: Final answer
    x = 2,979.58

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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.