Home / 5,490.84-8,238.09-3,649.20

Finding the Fourth Proportional to 5,490.84, 8,238.09 and 3,649.20

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Solution

The fourth proportional to 5,490.84, 8,238.09 and 3,649.20 is: 5,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.84 : 8,238.09 = 3,649.20 : x
  2. Step 2: Convert to fraction form
    5,490.84/8,238.09 = 3,649.20/x
  3. Step 3: Cross multiply
    5,490.84x = 8,238.09 × 3,649.20
  4. Step 4: Simplify right side
    5,490.84x = 30,062,438.03
  5. Step 5: Solve for x
    x = 30,062,438.03/5,490.84
  6. Step 6: Final answer
    x = 5,475.02

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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.