Home / 3,645.12-5,015.64-3,535.80

Finding the Fourth Proportional to 3,645.12, 5,015.64 and 3,535.80

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Solution

The fourth proportional to 3,645.12, 5,015.64 and 3,535.80 is: 4,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.12 : 5,015.64 = 3,535.80 : x
  2. Step 2: Convert to fraction form
    3,645.12/5,015.64 = 3,535.80/x
  3. Step 3: Cross multiply
    3,645.12x = 5,015.64 × 3,535.80
  4. Step 4: Simplify right side
    3,645.12x = 17,734,299.91
  5. Step 5: Solve for x
    x = 17,734,299.91/3,645.12
  6. Step 6: Final answer
    x = 4,865.22

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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.