Home / 5,388.29-8,082.44-1,690.82

Finding the Fourth Proportional to 5,388.29, 8,082.44 and 1,690.82

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Solution

The fourth proportional to 5,388.29, 8,082.44 and 1,690.82 is: 2,536.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.29 : 8,082.44 = 1,690.82 : x
  2. Step 2: Convert to fraction form
    5,388.29/8,082.44 = 1,690.82/x
  3. Step 3: Cross multiply
    5,388.29x = 8,082.44 × 1,690.82
  4. Step 4: Simplify right side
    5,388.29x = 13,665,951.20
  5. Step 5: Solve for x
    x = 13,665,951.20/5,388.29
  6. Step 6: Final answer
    x = 2,536.23

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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.