Home / 4,212.12-6,317.64-1,616.88

Finding the Fourth Proportional to 4,212.12, 6,317.64 and 1,616.88

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Solution

The fourth proportional to 4,212.12, 6,317.64 and 1,616.88 is: 2,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.12 : 6,317.64 = 1,616.88 : x
  2. Step 2: Convert to fraction form
    4,212.12/6,317.64 = 1,616.88/x
  3. Step 3: Cross multiply
    4,212.12x = 6,317.64 × 1,616.88
  4. Step 4: Simplify right side
    4,212.12x = 10,214,865.76
  5. Step 5: Solve for x
    x = 10,214,865.76/4,212.12
  6. Step 6: Final answer
    x = 2,425.11

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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.