Home / 3,318.45-4,976.26-1,126.19

Finding the Fourth Proportional to 3,318.45, 4,976.26 and 1,126.19

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Solution

The fourth proportional to 3,318.45, 4,976.26 and 1,126.19 is: 1,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.45 : 4,976.26 = 1,126.19 : x
  2. Step 2: Convert to fraction form
    3,318.45/4,976.26 = 1,126.19/x
  3. Step 3: Cross multiply
    3,318.45x = 4,976.26 × 1,126.19
  4. Step 4: Simplify right side
    3,318.45x = 5,604,186.55
  5. Step 5: Solve for x
    x = 5,604,186.55/3,318.45
  6. Step 6: Final answer
    x = 1,688.80

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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.