Home / 3,209.72-4,815.25-1,018.13

Finding the Fourth Proportional to 3,209.72, 4,815.25 and 1,018.13

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Solution

The fourth proportional to 3,209.72, 4,815.25 and 1,018.13 is: 1,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.72 : 4,815.25 = 1,018.13 : x
  2. Step 2: Convert to fraction form
    3,209.72/4,815.25 = 1,018.13/x
  3. Step 3: Cross multiply
    3,209.72x = 4,815.25 × 1,018.13
  4. Step 4: Simplify right side
    3,209.72x = 4,902,523.86
  5. Step 5: Solve for x
    x = 4,902,523.86/3,209.72
  6. Step 6: Final answer
    x = 1,527.40

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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.