Home / 3,572.28-5,357.64-1,105.68

Finding the Fourth Proportional to 3,572.28, 5,357.64 and 1,105.68

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Solution

The fourth proportional to 3,572.28, 5,357.64 and 1,105.68 is: 1,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.28 : 5,357.64 = 1,105.68 : x
  2. Step 2: Convert to fraction form
    3,572.28/5,357.64 = 1,105.68/x
  3. Step 3: Cross multiply
    3,572.28x = 5,357.64 × 1,105.68
  4. Step 4: Simplify right side
    3,572.28x = 5,923,835.40
  5. Step 5: Solve for x
    x = 5,923,835.40/3,572.28
  6. Step 6: Final answer
    x = 1,658.28

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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.