Home / 4,770.84-7,155.54-2,137.80

Finding the Fourth Proportional to 4,770.84, 7,155.54 and 2,137.80

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Solution

The fourth proportional to 4,770.84, 7,155.54 and 2,137.80 is: 3,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.84 : 7,155.54 = 2,137.80 : x
  2. Step 2: Convert to fraction form
    4,770.84/7,155.54 = 2,137.80/x
  3. Step 3: Cross multiply
    4,770.84x = 7,155.54 × 2,137.80
  4. Step 4: Simplify right side
    4,770.84x = 15,297,113.41
  5. Step 5: Solve for x
    x = 15,297,113.41/4,770.84
  6. Step 6: Final answer
    x = 3,206.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.