Home / 4,938.52-6,815.98-2,842.20

Finding the Fourth Proportional to 4,938.52, 6,815.98 and 2,842.20

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Solution

The fourth proportional to 4,938.52, 6,815.98 and 2,842.20 is: 3,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.52 : 6,815.98 = 2,842.20 : x
  2. Step 2: Convert to fraction form
    4,938.52/6,815.98 = 2,842.20/x
  3. Step 3: Cross multiply
    4,938.52x = 6,815.98 × 2,842.20
  4. Step 4: Simplify right side
    4,938.52x = 19,372,378.36
  5. Step 5: Solve for x
    x = 19,372,378.36/4,938.52
  6. Step 6: Final answer
    x = 3,922.71

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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.