Home / 5,913.56-8,161.13-3,396.40

Finding the Fourth Proportional to 5,913.56, 8,161.13 and 3,396.40

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Solution

The fourth proportional to 5,913.56, 8,161.13 and 3,396.40 is: 4,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.56 : 8,161.13 = 3,396.40 : x
  2. Step 2: Convert to fraction form
    5,913.56/8,161.13 = 3,396.40/x
  3. Step 3: Cross multiply
    5,913.56x = 8,161.13 × 3,396.40
  4. Step 4: Simplify right side
    5,913.56x = 27,718,461.93
  5. Step 5: Solve for x
    x = 27,718,461.93/5,913.56
  6. Step 6: Final answer
    x = 4,687.27

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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.