Home / 6,490.17-8,957.37-3,971.85

Finding the Fourth Proportional to 6,490.17, 8,957.37 and 3,971.85

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Solution

The fourth proportional to 6,490.17, 8,957.37 and 3,971.85 is: 5,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.17 : 8,957.37 = 3,971.85 : x
  2. Step 2: Convert to fraction form
    6,490.17/8,957.37 = 3,971.85/x
  3. Step 3: Cross multiply
    6,490.17x = 8,957.37 × 3,971.85
  4. Step 4: Simplify right side
    6,490.17x = 35,577,330.03
  5. Step 5: Solve for x
    x = 35,577,330.03/6,490.17
  6. Step 6: Final answer
    x = 5,481.73

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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.