Home / 7,690.31-11,526.50-3,530.75

Finding the Fourth Proportional to 7,690.31, 11,526.50 and 3,530.75

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Solution

The fourth proportional to 7,690.31, 11,526.50 and 3,530.75 is: 5,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.31 : 11,526.50 = 3,530.75 : x
  2. Step 2: Convert to fraction form
    7,690.31/11,526.50 = 3,530.75/x
  3. Step 3: Cross multiply
    7,690.31x = 11,526.50 × 3,530.75
  4. Step 4: Simplify right side
    7,690.31x = 40,697,189.88
  5. Step 5: Solve for x
    x = 40,697,189.88/7,690.31
  6. Step 6: Final answer
    x = 5,292.01

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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.