Home / 5,388.16-8,082.32-1,690.24

Finding the Fourth Proportional to 5,388.16, 8,082.32 and 1,690.24

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Solution

The fourth proportional to 5,388.16, 8,082.32 and 1,690.24 is: 2,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.16 : 8,082.32 = 1,690.24 : x
  2. Step 2: Convert to fraction form
    5,388.16/8,082.32 = 1,690.24/x
  3. Step 3: Cross multiply
    5,388.16x = 8,082.32 × 1,690.24
  4. Step 4: Simplify right side
    5,388.16x = 13,661,060.56
  5. Step 5: Solve for x
    x = 13,661,060.56/5,388.16
  6. Step 6: Final answer
    x = 2,535.39

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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.