Home / 5,918.68-8,164.56-3,680.92

Finding the Fourth Proportional to 5,918.68, 8,164.56 and 3,680.92

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Solution

The fourth proportional to 5,918.68, 8,164.56 and 3,680.92 is: 5,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.68 : 8,164.56 = 3,680.92 : x
  2. Step 2: Convert to fraction form
    5,918.68/8,164.56 = 3,680.92/x
  3. Step 3: Cross multiply
    5,918.68x = 8,164.56 × 3,680.92
  4. Step 4: Simplify right side
    5,918.68x = 30,053,092.20
  5. Step 5: Solve for x
    x = 30,053,092.20/5,918.68
  6. Step 6: Final answer
    x = 5,077.67

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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.