Home / 3,987.46-5,503.91-2,571.15

Finding the Fourth Proportional to 3,987.46, 5,503.91 and 2,571.15

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Solution

The fourth proportional to 3,987.46, 5,503.91 and 2,571.15 is: 3,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.46 : 5,503.91 = 2,571.15 : x
  2. Step 2: Convert to fraction form
    3,987.46/5,503.91 = 2,571.15/x
  3. Step 3: Cross multiply
    3,987.46x = 5,503.91 × 2,571.15
  4. Step 4: Simplify right side
    3,987.46x = 14,151,378.20
  5. Step 5: Solve for x
    x = 14,151,378.20/3,987.46
  6. Step 6: Final answer
    x = 3,548.97

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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.