Home / 4,087.85-5,641.26-2,319.49

Finding the Fourth Proportional to 4,087.85, 5,641.26 and 2,319.49

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Solution

The fourth proportional to 4,087.85, 5,641.26 and 2,319.49 is: 3,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.85 : 5,641.26 = 2,319.49 : x
  2. Step 2: Convert to fraction form
    4,087.85/5,641.26 = 2,319.49/x
  3. Step 3: Cross multiply
    4,087.85x = 5,641.26 × 2,319.49
  4. Step 4: Simplify right side
    4,087.85x = 13,084,817.95
  5. Step 5: Solve for x
    x = 13,084,817.95/4,087.85
  6. Step 6: Final answer
    x = 3,200.90

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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.