Home / 4,938.76-6,815.52-2,842.90

Finding the Fourth Proportional to 4,938.76, 6,815.52 and 2,842.90

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Solution

The fourth proportional to 4,938.76, 6,815.52 and 2,842.90 is: 3,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.76 : 6,815.52 = 2,842.90 : x
  2. Step 2: Convert to fraction form
    4,938.76/6,815.52 = 2,842.90/x
  3. Step 3: Cross multiply
    4,938.76x = 6,815.52 × 2,842.90
  4. Step 4: Simplify right side
    4,938.76x = 19,375,841.81
  5. Step 5: Solve for x
    x = 19,375,841.81/4,938.76
  6. Step 6: Final answer
    x = 3,923.22

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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.