Home / 3,318.05-4,977.52-1,126.19

Finding the Fourth Proportional to 3,318.05, 4,977.52 and 1,126.19

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Solution

The fourth proportional to 3,318.05, 4,977.52 and 1,126.19 is: 1,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.05 : 4,977.52 = 1,126.19 : x
  2. Step 2: Convert to fraction form
    3,318.05/4,977.52 = 1,126.19/x
  3. Step 3: Cross multiply
    3,318.05x = 4,977.52 × 1,126.19
  4. Step 4: Simplify right side
    3,318.05x = 5,605,642.88
  5. Step 5: Solve for x
    x = 5,605,642.88/3,318.05
  6. Step 6: Final answer
    x = 1,689.44

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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.