Home / 7,739.28-11,605.95-3,788.10

Finding the Fourth Proportional to 7,739.28, 11,605.95 and 3,788.10

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Solution

The fourth proportional to 7,739.28, 11,605.95 and 3,788.10 is: 5,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.28 : 11,605.95 = 3,788.10 : x
  2. Step 2: Convert to fraction form
    7,739.28/11,605.95 = 3,788.10/x
  3. Step 3: Cross multiply
    7,739.28x = 11,605.95 × 3,788.10
  4. Step 4: Simplify right side
    7,739.28x = 43,964,499.20
  5. Step 5: Solve for x
    x = 43,964,499.20/7,739.28
  6. Step 6: Final answer
    x = 5,680.70

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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.