Home / 5,915.09-8,161.95-3,397.31

Finding the Fourth Proportional to 5,915.09, 8,161.95 and 3,397.31

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Solution

The fourth proportional to 5,915.09, 8,161.95 and 3,397.31 is: 4,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.09 : 8,161.95 = 3,397.31 : x
  2. Step 2: Convert to fraction form
    5,915.09/8,161.95 = 3,397.31/x
  3. Step 3: Cross multiply
    5,915.09x = 8,161.95 × 3,397.31
  4. Step 4: Simplify right side
    5,915.09x = 27,728,674.35
  5. Step 5: Solve for x
    x = 27,728,674.35/5,915.09
  6. Step 6: Final answer
    x = 4,687.79

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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.