Home / 3,657.96-5,047.79-2,166.01

Finding the Fourth Proportional to 3,657.96, 5,047.79 and 2,166.01

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Solution

The fourth proportional to 3,657.96, 5,047.79 and 2,166.01 is: 2,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.96 : 5,047.79 = 2,166.01 : x
  2. Step 2: Convert to fraction form
    3,657.96/5,047.79 = 2,166.01/x
  3. Step 3: Cross multiply
    3,657.96x = 5,047.79 × 2,166.01
  4. Step 4: Simplify right side
    3,657.96x = 10,933,540.17
  5. Step 5: Solve for x
    x = 10,933,540.17/3,657.96
  6. Step 6: Final answer
    x = 2,988.97

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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.