Home / 4,087.60-5,640.86-2,319.46

Finding the Fourth Proportional to 4,087.60, 5,640.86 and 2,319.46

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Solution

The fourth proportional to 4,087.60, 5,640.86 and 2,319.46 is: 3,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.60 : 5,640.86 = 2,319.46 : x
  2. Step 2: Convert to fraction form
    4,087.60/5,640.86 = 2,319.46/x
  3. Step 3: Cross multiply
    4,087.60x = 5,640.86 × 2,319.46
  4. Step 4: Simplify right side
    4,087.60x = 13,083,749.14
  5. Step 5: Solve for x
    x = 13,083,749.14/4,087.60
  6. Step 6: Final answer
    x = 3,200.84

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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.