Home / 4,987.75-7,474.34-2,213.60

Finding the Fourth Proportional to 4,987.75, 7,474.34 and 2,213.60

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Solution

The fourth proportional to 4,987.75, 7,474.34 and 2,213.60 is: 3,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.75 : 7,474.34 = 2,213.60 : x
  2. Step 2: Convert to fraction form
    4,987.75/7,474.34 = 2,213.60/x
  3. Step 3: Cross multiply
    4,987.75x = 7,474.34 × 2,213.60
  4. Step 4: Simplify right side
    4,987.75x = 16,545,199.02
  5. Step 5: Solve for x
    x = 16,545,199.02/4,987.75
  6. Step 6: Final answer
    x = 3,317.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.