Home / 4,087.42-5,640.32-2,319.32

Finding the Fourth Proportional to 4,087.42, 5,640.32 and 2,319.32

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Solution

The fourth proportional to 4,087.42, 5,640.32 and 2,319.32 is: 3,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.42 : 5,640.32 = 2,319.32 : x
  2. Step 2: Convert to fraction form
    4,087.42/5,640.32 = 2,319.32/x
  3. Step 3: Cross multiply
    4,087.42x = 5,640.32 × 2,319.32
  4. Step 4: Simplify right side
    4,087.42x = 13,081,706.98
  5. Step 5: Solve for x
    x = 13,081,706.98/4,087.42
  6. Step 6: Final answer
    x = 3,200.48

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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.