Home / 5,429.52-7,491.38-3,161.24

Finding the Fourth Proportional to 5,429.52, 7,491.38 and 3,161.24

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Solution

The fourth proportional to 5,429.52, 7,491.38 and 3,161.24 is: 4,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.52 : 7,491.38 = 3,161.24 : x
  2. Step 2: Convert to fraction form
    5,429.52/7,491.38 = 3,161.24/x
  3. Step 3: Cross multiply
    5,429.52x = 7,491.38 × 3,161.24
  4. Step 4: Simplify right side
    5,429.52x = 23,682,050.11
  5. Step 5: Solve for x
    x = 23,682,050.11/5,429.52
  6. Step 6: Final answer
    x = 4,361.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.