Home / 7,239.72-10,861.41-2,045.60

Finding the Fourth Proportional to 7,239.72, 10,861.41 and 2,045.60

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Solution

The fourth proportional to 7,239.72, 10,861.41 and 2,045.60 is: 3,068.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.72 : 10,861.41 = 2,045.60 : x
  2. Step 2: Convert to fraction form
    7,239.72/10,861.41 = 2,045.60/x
  3. Step 3: Cross multiply
    7,239.72x = 10,861.41 × 2,045.60
  4. Step 4: Simplify right side
    7,239.72x = 22,218,100.30
  5. Step 5: Solve for x
    x = 22,218,100.30/7,239.72
  6. Step 6: Final answer
    x = 3,068.92

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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.