Home / 4,089.79-5,640.72-2,744.96

Finding the Fourth Proportional to 4,089.79, 5,640.72 and 2,744.96

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Solution

The fourth proportional to 4,089.79, 5,640.72 and 2,744.96 is: 3,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.79 : 5,640.72 = 2,744.96 : x
  2. Step 2: Convert to fraction form
    4,089.79/5,640.72 = 2,744.96/x
  3. Step 3: Cross multiply
    4,089.79x = 5,640.72 × 2,744.96
  4. Step 4: Simplify right side
    4,089.79x = 15,483,550.77
  5. Step 5: Solve for x
    x = 15,483,550.77/4,089.79
  6. Step 6: Final answer
    x = 3,785.90

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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.