Home / 5,971.12-8,240.43-3,318.47

Finding the Fourth Proportional to 5,971.12, 8,240.43 and 3,318.47

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Solution

The fourth proportional to 5,971.12, 8,240.43 and 3,318.47 is: 4,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,971.12 : 8,240.43 = 3,318.47 : x
  2. Step 2: Convert to fraction form
    5,971.12/8,240.43 = 3,318.47/x
  3. Step 3: Cross multiply
    5,971.12x = 8,240.43 × 3,318.47
  4. Step 4: Simplify right side
    5,971.12x = 27,345,621.89
  5. Step 5: Solve for x
    x = 27,345,621.89/5,971.12
  6. Step 6: Final answer
    x = 4,579.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.