Home / 5,490.21-7,577.21-3,132.84

Finding the Fourth Proportional to 5,490.21, 7,577.21 and 3,132.84

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Solution

The fourth proportional to 5,490.21, 7,577.21 and 3,132.84 is: 4,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.21 : 7,577.21 = 3,132.84 : x
  2. Step 2: Convert to fraction form
    5,490.21/7,577.21 = 3,132.84/x
  3. Step 3: Cross multiply
    5,490.21x = 7,577.21 × 3,132.84
  4. Step 4: Simplify right side
    5,490.21x = 23,738,170.91
  5. Step 5: Solve for x
    x = 23,738,170.91/5,490.21
  6. Step 6: Final answer
    x = 4,323.73

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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.