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Finding the Fourth Proportional to 3,195.75, 4,785.03 and 1,807.02

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Solution

The fourth proportional to 3,195.75, 4,785.03 and 1,807.02 is: 2,705.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.75 : 4,785.03 = 1,807.02 : x
  2. Step 2: Convert to fraction form
    3,195.75/4,785.03 = 1,807.02/x
  3. Step 3: Cross multiply
    3,195.75x = 4,785.03 × 1,807.02
  4. Step 4: Simplify right side
    3,195.75x = 8,646,644.91
  5. Step 5: Solve for x
    x = 8,646,644.91/3,195.75
  6. Step 6: Final answer
    x = 2,705.67

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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.