Home / 4,155.45-5,736.65-3,209.12

Finding the Fourth Proportional to 4,155.45, 5,736.65 and 3,209.12

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Solution

The fourth proportional to 4,155.45, 5,736.65 and 3,209.12 is: 4,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.45 : 5,736.65 = 3,209.12 : x
  2. Step 2: Convert to fraction form
    4,155.45/5,736.65 = 3,209.12/x
  3. Step 3: Cross multiply
    4,155.45x = 5,736.65 × 3,209.12
  4. Step 4: Simplify right side
    4,155.45x = 18,409,600.19
  5. Step 5: Solve for x
    x = 18,409,600.19/4,155.45
  6. Step 6: Final answer
    x = 4,430.23

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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.