Home / 5,215.03-7,818.44-2,580.69

Finding the Fourth Proportional to 5,215.03, 7,818.44 and 2,580.69

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Solution

The fourth proportional to 5,215.03, 7,818.44 and 2,580.69 is: 3,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.03 : 7,818.44 = 2,580.69 : x
  2. Step 2: Convert to fraction form
    5,215.03/7,818.44 = 2,580.69/x
  3. Step 3: Cross multiply
    5,215.03x = 7,818.44 × 2,580.69
  4. Step 4: Simplify right side
    5,215.03x = 20,177,000.86
  5. Step 5: Solve for x
    x = 20,177,000.86/5,215.03
  6. Step 6: Final answer
    x = 3,869.01

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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.