Home / 4,905.35-6,768.72-3,135.70

Finding the Fourth Proportional to 4,905.35, 6,768.72 and 3,135.70

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Solution

The fourth proportional to 4,905.35, 6,768.72 and 3,135.70 is: 4,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.35 : 6,768.72 = 3,135.70 : x
  2. Step 2: Convert to fraction form
    4,905.35/6,768.72 = 3,135.70/x
  3. Step 3: Cross multiply
    4,905.35x = 6,768.72 × 3,135.70
  4. Step 4: Simplify right side
    4,905.35x = 21,224,675.30
  5. Step 5: Solve for x
    x = 21,224,675.30/4,905.35
  6. Step 6: Final answer
    x = 4,326.84

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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.