Home / 7,103.15-10,657.79-3,812.39

Finding the Fourth Proportional to 7,103.15, 10,657.79 and 3,812.39

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Solution

The fourth proportional to 7,103.15, 10,657.79 and 3,812.39 is: 5,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.15 : 10,657.79 = 3,812.39 : x
  2. Step 2: Convert to fraction form
    7,103.15/10,657.79 = 3,812.39/x
  3. Step 3: Cross multiply
    7,103.15x = 10,657.79 × 3,812.39
  4. Step 4: Simplify right side
    7,103.15x = 40,631,673.90
  5. Step 5: Solve for x
    x = 40,631,673.90/7,103.15
  6. Step 6: Final answer
    x = 5,720.24

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1.5x scale

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.