Home / 7,281.06-10,921.56-2,086.94

Finding the Fourth Proportional to 7,281.06, 10,921.56 and 2,086.94

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Solution

The fourth proportional to 7,281.06, 10,921.56 and 2,086.94 is: 3,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.06 : 10,921.56 = 2,086.94 : x
  2. Step 2: Convert to fraction form
    7,281.06/10,921.56 = 2,086.94/x
  3. Step 3: Cross multiply
    7,281.06x = 10,921.56 × 2,086.94
  4. Step 4: Simplify right side
    7,281.06x = 22,792,585.82
  5. Step 5: Solve for x
    x = 22,792,585.82/7,281.06
  6. Step 6: Final answer
    x = 3,130.39

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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.