Home / 7,165.76-9,889.40-4,181.04

Finding the Fourth Proportional to 7,165.76, 9,889.40 and 4,181.04

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Solution

The fourth proportional to 7,165.76, 9,889.40 and 4,181.04 is: 5,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.76 : 9,889.40 = 4,181.04 : x
  2. Step 2: Convert to fraction form
    7,165.76/9,889.40 = 4,181.04/x
  3. Step 3: Cross multiply
    7,165.76x = 9,889.40 × 4,181.04
  4. Step 4: Simplify right side
    7,165.76x = 41,347,976.98
  5. Step 5: Solve for x
    x = 41,347,976.98/7,165.76
  6. Step 6: Final answer
    x = 5,770.22

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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.