Home / 4,087.98-5,642.19-2,319.75

Finding the Fourth Proportional to 4,087.98, 5,642.19 and 2,319.75

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Solution

The fourth proportional to 4,087.98, 5,642.19 and 2,319.75 is: 3,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.98 : 5,642.19 = 2,319.75 : x
  2. Step 2: Convert to fraction form
    4,087.98/5,642.19 = 2,319.75/x
  3. Step 3: Cross multiply
    4,087.98x = 5,642.19 × 2,319.75
  4. Step 4: Simplify right side
    4,087.98x = 13,088,470.25
  5. Step 5: Solve for x
    x = 13,088,470.25/4,087.98
  6. Step 6: Final answer
    x = 3,201.70

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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.