Home / 7,421.71-11,132.61-3,039.16

Finding the Fourth Proportional to 7,421.71, 11,132.61 and 3,039.16

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Solution

The fourth proportional to 7,421.71, 11,132.61 and 3,039.16 is: 4,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.71 : 11,132.61 = 3,039.16 : x
  2. Step 2: Convert to fraction form
    7,421.71/11,132.61 = 3,039.16/x
  3. Step 3: Cross multiply
    7,421.71x = 11,132.61 × 3,039.16
  4. Step 4: Simplify right side
    7,421.71x = 33,833,783.01
  5. Step 5: Solve for x
    x = 33,833,783.01/7,421.71
  6. Step 6: Final answer
    x = 4,558.76

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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.