Home / 4,222.33-5,827.75-2,808.47

Finding the Fourth Proportional to 4,222.33, 5,827.75 and 2,808.47

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Solution

The fourth proportional to 4,222.33, 5,827.75 and 2,808.47 is: 3,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.33 : 5,827.75 = 2,808.47 : x
  2. Step 2: Convert to fraction form
    4,222.33/5,827.75 = 2,808.47/x
  3. Step 3: Cross multiply
    4,222.33x = 5,827.75 × 2,808.47
  4. Step 4: Simplify right side
    4,222.33x = 16,367,068.59
  5. Step 5: Solve for x
    x = 16,367,068.59/4,222.33
  6. Step 6: Final answer
    x = 3,876.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.