Home / 7,281.60-10,922.72-2,087.36

Finding the Fourth Proportional to 7,281.60, 10,922.72 and 2,087.36

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Solution

The fourth proportional to 7,281.60, 10,922.72 and 2,087.36 is: 3,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.60 : 10,922.72 = 2,087.36 : x
  2. Step 2: Convert to fraction form
    7,281.60/10,922.72 = 2,087.36/x
  3. Step 3: Cross multiply
    7,281.60x = 10,922.72 × 2,087.36
  4. Step 4: Simplify right side
    7,281.60x = 22,799,648.82
  5. Step 5: Solve for x
    x = 22,799,648.82/7,281.60
  6. Step 6: Final answer
    x = 3,131.13

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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.