Home / 4,087.66-5,640.78-2,319.22

Finding the Fourth Proportional to 4,087.66, 5,640.78 and 2,319.22

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Solution

The fourth proportional to 4,087.66, 5,640.78 and 2,319.22 is: 3,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.66 : 5,640.78 = 2,319.22 : x
  2. Step 2: Convert to fraction form
    4,087.66/5,640.78 = 2,319.22/x
  3. Step 3: Cross multiply
    4,087.66x = 5,640.78 × 2,319.22
  4. Step 4: Simplify right side
    4,087.66x = 13,082,209.79
  5. Step 5: Solve for x
    x = 13,082,209.79/4,087.66
  6. Step 6: Final answer
    x = 3,200.42

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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.