Home / 5,616.42-8,424.32-1,720.82

Finding the Fourth Proportional to 5,616.42, 8,424.32 and 1,720.82

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Solution

The fourth proportional to 5,616.42, 8,424.32 and 1,720.82 is: 2,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.42 : 8,424.32 = 1,720.82 : x
  2. Step 2: Convert to fraction form
    5,616.42/8,424.32 = 1,720.82/x
  3. Step 3: Cross multiply
    5,616.42x = 8,424.32 × 1,720.82
  4. Step 4: Simplify right side
    5,616.42x = 14,496,738.34
  5. Step 5: Solve for x
    x = 14,496,738.34/5,616.42
  6. Step 6: Final answer
    x = 2,581.14

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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.