Home / 5,911.16-8,157.28-3,222.40

Finding the Fourth Proportional to 5,911.16, 8,157.28 and 3,222.40

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Solution

The fourth proportional to 5,911.16, 8,157.28 and 3,222.40 is: 4,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.16 : 8,157.28 = 3,222.40 : x
  2. Step 2: Convert to fraction form
    5,911.16/8,157.28 = 3,222.40/x
  3. Step 3: Cross multiply
    5,911.16x = 8,157.28 × 3,222.40
  4. Step 4: Simplify right side
    5,911.16x = 26,286,019.07
  5. Step 5: Solve for x
    x = 26,286,019.07/5,911.16
  6. Step 6: Final answer
    x = 4,446.85

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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.