Home / 7,720.01-11,577.60-2,789

Finding the Fourth Proportional to 7,720.01, 11,577.60 and 2,789

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Solution

The fourth proportional to 7,720.01, 11,577.60 and 2,789 is: 4,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.01 : 11,577.60 = 2,789 : x
  2. Step 2: Convert to fraction form
    7,720.01/11,577.60 = 2,789/x
  3. Step 3: Cross multiply
    7,720.01x = 11,577.60 × 2,789
  4. Step 4: Simplify right side
    7,720.01x = 32,289,926.40
  5. Step 5: Solve for x
    x = 32,289,926.40/7,720.01
  6. Step 6: Final answer
    x = 4,182.63

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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.