Home / 5,201.12-7,799.75-1,690.23

Finding the Fourth Proportional to 5,201.12, 7,799.75 and 1,690.23

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Solution

The fourth proportional to 5,201.12, 7,799.75 and 1,690.23 is: 2,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.12 : 7,799.75 = 1,690.23 : x
  2. Step 2: Convert to fraction form
    5,201.12/7,799.75 = 1,690.23/x
  3. Step 3: Cross multiply
    5,201.12x = 7,799.75 × 1,690.23
  4. Step 4: Simplify right side
    5,201.12x = 13,183,371.44
  5. Step 5: Solve for x
    x = 13,183,371.44/5,201.12
  6. Step 6: Final answer
    x = 2,534.72

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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.