Home / 7,685.28-11,530.35-3,005.91

Finding the Fourth Proportional to 7,685.28, 11,530.35 and 3,005.91

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Solution

The fourth proportional to 7,685.28, 11,530.35 and 3,005.91 is: 4,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.28 : 11,530.35 = 3,005.91 : x
  2. Step 2: Convert to fraction form
    7,685.28/11,530.35 = 3,005.91/x
  3. Step 3: Cross multiply
    7,685.28x = 11,530.35 × 3,005.91
  4. Step 4: Simplify right side
    7,685.28x = 34,659,194.37
  5. Step 5: Solve for x
    x = 34,659,194.37/7,685.28
  6. Step 6: Final answer
    x = 4,509.82

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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.