Home / 7,688.31-11,523.50-3,528.75

Finding the Fourth Proportional to 7,688.31, 11,523.50 and 3,528.75

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Solution

The fourth proportional to 7,688.31, 11,523.50 and 3,528.75 is: 5,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.31 : 11,523.50 = 3,528.75 : x
  2. Step 2: Convert to fraction form
    7,688.31/11,523.50 = 3,528.75/x
  3. Step 3: Cross multiply
    7,688.31x = 11,523.50 × 3,528.75
  4. Step 4: Simplify right side
    7,688.31x = 40,663,550.63
  5. Step 5: Solve for x
    x = 40,663,550.63/7,688.31
  6. Step 6: Final answer
    x = 5,289.01

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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.