Home / 4,185.96-6,280.48-1,720.12

Finding the Fourth Proportional to 4,185.96, 6,280.48 and 1,720.12

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Solution

The fourth proportional to 4,185.96, 6,280.48 and 1,720.12 is: 2,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.96 : 6,280.48 = 1,720.12 : x
  2. Step 2: Convert to fraction form
    4,185.96/6,280.48 = 1,720.12/x
  3. Step 3: Cross multiply
    4,185.96x = 6,280.48 × 1,720.12
  4. Step 4: Simplify right side
    4,185.96x = 10,803,179.26
  5. Step 5: Solve for x
    x = 10,803,179.26/4,185.96
  6. Step 6: Final answer
    x = 2,580.81

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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.