Home / 5,189.36-7,785.21-1,902.44

Finding the Fourth Proportional to 5,189.36, 7,785.21 and 1,902.44

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Solution

The fourth proportional to 5,189.36, 7,785.21 and 1,902.44 is: 2,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.36 : 7,785.21 = 1,902.44 : x
  2. Step 2: Convert to fraction form
    5,189.36/7,785.21 = 1,902.44/x
  3. Step 3: Cross multiply
    5,189.36x = 7,785.21 × 1,902.44
  4. Step 4: Simplify right side
    5,189.36x = 14,810,855.99
  5. Step 5: Solve for x
    x = 14,810,855.99/5,189.36
  6. Step 6: Final answer
    x = 2,854.08

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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.