Home / 3,209.10-4,807.42-1,818.16

Finding the Fourth Proportional to 3,209.10, 4,807.42 and 1,818.16

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Solution

The fourth proportional to 3,209.10, 4,807.42 and 1,818.16 is: 2,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.10 : 4,807.42 = 1,818.16 : x
  2. Step 2: Convert to fraction form
    3,209.10/4,807.42 = 1,818.16/x
  3. Step 3: Cross multiply
    3,209.10x = 4,807.42 × 1,818.16
  4. Step 4: Simplify right side
    3,209.10x = 8,740,658.75
  5. Step 5: Solve for x
    x = 8,740,658.75/3,209.10
  6. Step 6: Final answer
    x = 2,723.71

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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.