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Finding the Fourth Proportional to 3,291.45, 4,927.58 and 3,195.45

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Solution

The fourth proportional to 3,291.45, 4,927.58 and 3,195.45 is: 4,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.45 : 4,927.58 = 3,195.45 : x
  2. Step 2: Convert to fraction form
    3,291.45/4,927.58 = 3,195.45/x
  3. Step 3: Cross multiply
    3,291.45x = 4,927.58 × 3,195.45
  4. Step 4: Simplify right side
    3,291.45x = 15,745,819.53
  5. Step 5: Solve for x
    x = 15,745,819.53/3,291.45
  6. Step 6: Final answer
    x = 4,783.85

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1.5x scale

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.