Home / 4,087.90-5,630.56-3,141.88

Finding the Fourth Proportional to 4,087.90, 5,630.56 and 3,141.88

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Solution

The fourth proportional to 4,087.90, 5,630.56 and 3,141.88 is: 4,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.90 : 5,630.56 = 3,141.88 : x
  2. Step 2: Convert to fraction form
    4,087.90/5,630.56 = 3,141.88/x
  3. Step 3: Cross multiply
    4,087.90x = 5,630.56 × 3,141.88
  4. Step 4: Simplify right side
    4,087.90x = 17,690,528.14
  5. Step 5: Solve for x
    x = 17,690,528.14/4,087.90
  6. Step 6: Final answer
    x = 4,327.54

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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.