Home / 5,910.45-8,154.36-3,390.81

Finding the Fourth Proportional to 5,910.45, 8,154.36 and 3,390.81

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Solution

The fourth proportional to 5,910.45, 8,154.36 and 3,390.81 is: 4,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.45 : 8,154.36 = 3,390.81 : x
  2. Step 2: Convert to fraction form
    5,910.45/8,154.36 = 3,390.81/x
  3. Step 3: Cross multiply
    5,910.45x = 8,154.36 × 3,390.81
  4. Step 4: Simplify right side
    5,910.45x = 27,649,885.43
  5. Step 5: Solve for x
    x = 27,649,885.43/5,910.45
  6. Step 6: Final answer
    x = 4,678.14

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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.