Home / 4,087.08-5,640.26-2,318.65

Finding the Fourth Proportional to 4,087.08, 5,640.26 and 2,318.65

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Solution

The fourth proportional to 4,087.08, 5,640.26 and 2,318.65 is: 3,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.08 : 5,640.26 = 2,318.65 : x
  2. Step 2: Convert to fraction form
    4,087.08/5,640.26 = 2,318.65/x
  3. Step 3: Cross multiply
    4,087.08x = 5,640.26 × 2,318.65
  4. Step 4: Simplify right side
    4,087.08x = 13,077,763.16
  5. Step 5: Solve for x
    x = 13,077,763.16/4,087.08
  6. Step 6: Final answer
    x = 3,199.78

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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.