Home / 3,445.51-5,169.05-1,105.68

Finding the Fourth Proportional to 3,445.51, 5,169.05 and 1,105.68

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Solution

The fourth proportional to 3,445.51, 5,169.05 and 1,105.68 is: 1,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.51 : 5,169.05 = 1,105.68 : x
  2. Step 2: Convert to fraction form
    3,445.51/5,169.05 = 1,105.68/x
  3. Step 3: Cross multiply
    3,445.51x = 5,169.05 × 1,105.68
  4. Step 4: Simplify right side
    3,445.51x = 5,715,315.20
  5. Step 5: Solve for x
    x = 5,715,315.20/3,445.51
  6. Step 6: Final answer
    x = 1,658.77

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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.