Home / 7,421.60-11,131.60-3,039.52

Finding the Fourth Proportional to 7,421.60, 11,131.60 and 3,039.52

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Solution

The fourth proportional to 7,421.60, 11,131.60 and 3,039.52 is: 4,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.60 : 11,131.60 = 3,039.52 : x
  2. Step 2: Convert to fraction form
    7,421.60/11,131.60 = 3,039.52/x
  3. Step 3: Cross multiply
    7,421.60x = 11,131.60 × 3,039.52
  4. Step 4: Simplify right side
    7,421.60x = 33,834,720.83
  5. Step 5: Solve for x
    x = 33,834,720.83/7,421.60
  6. Step 6: Final answer
    x = 4,558.95

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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.