Home / 2,841.76-3,920.73-2,242.36

Finding the Fourth Proportional to 2,841.76, 3,920.73 and 2,242.36

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Solution

The fourth proportional to 2,841.76, 3,920.73 and 2,242.36 is: 3,093.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.76 : 3,920.73 = 2,242.36 : x
  2. Step 2: Convert to fraction form
    2,841.76/3,920.73 = 2,242.36/x
  3. Step 3: Cross multiply
    2,841.76x = 3,920.73 × 2,242.36
  4. Step 4: Simplify right side
    2,841.76x = 8,791,688.12
  5. Step 5: Solve for x
    x = 8,791,688.12/2,841.76
  6. Step 6: Final answer
    x = 3,093.75

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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.