Home / 4,839.62-6,671.60-3,420.80

Finding the Fourth Proportional to 4,839.62, 6,671.60 and 3,420.80

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Solution

The fourth proportional to 4,839.62, 6,671.60 and 3,420.80 is: 4,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.62 : 6,671.60 = 3,420.80 : x
  2. Step 2: Convert to fraction form
    4,839.62/6,671.60 = 3,420.80/x
  3. Step 3: Cross multiply
    4,839.62x = 6,671.60 × 3,420.80
  4. Step 4: Simplify right side
    4,839.62x = 22,822,209.28
  5. Step 5: Solve for x
    x = 22,822,209.28/4,839.62
  6. Step 6: Final answer
    x = 4,715.71

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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.