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Finding the Fourth Proportional to 3,295.85, 4,939.59 and 3,209.72

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Solution

The fourth proportional to 3,295.85, 4,939.59 and 3,209.72 is: 4,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,295.85 : 4,939.59 = 3,209.72 : x
  2. Step 2: Convert to fraction form
    3,295.85/4,939.59 = 3,209.72/x
  3. Step 3: Cross multiply
    3,295.85x = 4,939.59 × 3,209.72
  4. Step 4: Simplify right side
    3,295.85x = 15,854,700.81
  5. Step 5: Solve for x
    x = 15,854,700.81/3,295.85
  6. Step 6: Final answer
    x = 4,810.50

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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.