Home / 7,131.54-10,688.40-3,433.08

Finding the Fourth Proportional to 7,131.54, 10,688.40 and 3,433.08

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Solution

The fourth proportional to 7,131.54, 10,688.40 and 3,433.08 is: 5,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.54 : 10,688.40 = 3,433.08 : x
  2. Step 2: Convert to fraction form
    7,131.54/10,688.40 = 3,433.08/x
  3. Step 3: Cross multiply
    7,131.54x = 10,688.40 × 3,433.08
  4. Step 4: Simplify right side
    7,131.54x = 36,694,132.27
  5. Step 5: Solve for x
    x = 36,694,132.27/7,131.54
  6. Step 6: Final answer
    x = 5,145.33

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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.