Home / 4,212.88-6,320.40-1,616.02

Finding the Fourth Proportional to 4,212.88, 6,320.40 and 1,616.02

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Solution

The fourth proportional to 4,212.88, 6,320.40 and 1,616.02 is: 2,424.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.88 : 6,320.40 = 1,616.02 : x
  2. Step 2: Convert to fraction form
    4,212.88/6,320.40 = 1,616.02/x
  3. Step 3: Cross multiply
    4,212.88x = 6,320.40 × 1,616.02
  4. Step 4: Simplify right side
    4,212.88x = 10,213,892.81
  5. Step 5: Solve for x
    x = 10,213,892.81/4,212.88
  6. Step 6: Final answer
    x = 2,424.44

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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.