Home / 3,217.58-4,848-2,909.78

Finding the Fourth Proportional to 3,217.58, 4,848 and 2,909.78

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Solution

The fourth proportional to 3,217.58, 4,848 and 2,909.78 is: 4,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.58 : 4,848 = 2,909.78 : x
  2. Step 2: Convert to fraction form
    3,217.58/4,848 = 2,909.78/x
  3. Step 3: Cross multiply
    3,217.58x = 4,848 × 2,909.78
  4. Step 4: Simplify right side
    3,217.58x = 14,106,613.44
  5. Step 5: Solve for x
    x = 14,106,613.44/3,217.58
  6. Step 6: Final answer
    x = 4,384.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.