Home / 5,616.12-8,424.16-1,720.02

Finding the Fourth Proportional to 5,616.12, 8,424.16 and 1,720.02

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Solution

The fourth proportional to 5,616.12, 8,424.16 and 1,720.02 is: 2,580.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.12 : 8,424.16 = 1,720.02 : x
  2. Step 2: Convert to fraction form
    5,616.12/8,424.16 = 1,720.02/x
  3. Step 3: Cross multiply
    5,616.12x = 8,424.16 × 1,720.02
  4. Step 4: Simplify right side
    5,616.12x = 14,489,723.68
  5. Step 5: Solve for x
    x = 14,489,723.68/5,616.12
  6. Step 6: Final answer
    x = 2,580.02

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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.