Home / 5,939.40-8,196.78-3,421.45

Finding the Fourth Proportional to 5,939.40, 8,196.78 and 3,421.45

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Solution

The fourth proportional to 5,939.40, 8,196.78 and 3,421.45 is: 4,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.40 : 8,196.78 = 3,421.45 : x
  2. Step 2: Convert to fraction form
    5,939.40/8,196.78 = 3,421.45/x
  3. Step 3: Cross multiply
    5,939.40x = 8,196.78 × 3,421.45
  4. Step 4: Simplify right side
    5,939.40x = 28,044,876.76
  5. Step 5: Solve for x
    x = 28,044,876.76/5,939.40
  6. Step 6: Final answer
    x = 4,721.83

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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.