Home / 7,720.28-11,586.90-3,341.08

Finding the Fourth Proportional to 7,720.28, 11,586.90 and 3,341.08

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Solution

The fourth proportional to 7,720.28, 11,586.90 and 3,341.08 is: 5,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.28 : 11,586.90 = 3,341.08 : x
  2. Step 2: Convert to fraction form
    7,720.28/11,586.90 = 3,341.08/x
  3. Step 3: Cross multiply
    7,720.28x = 11,586.90 × 3,341.08
  4. Step 4: Simplify right side
    7,720.28x = 38,712,759.85
  5. Step 5: Solve for x
    x = 38,712,759.85/7,720.28
  6. Step 6: Final answer
    x = 5,014.42

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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.