Home / 5,611.40-8,414.51-1,661.24

Finding the Fourth Proportional to 5,611.40, 8,414.51 and 1,661.24

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Solution

The fourth proportional to 5,611.40, 8,414.51 and 1,661.24 is: 2,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.40 : 8,414.51 = 1,661.24 : x
  2. Step 2: Convert to fraction form
    5,611.40/8,414.51 = 1,661.24/x
  3. Step 3: Cross multiply
    5,611.40x = 8,414.51 × 1,661.24
  4. Step 4: Simplify right side
    5,611.40x = 13,978,537.99
  5. Step 5: Solve for x
    x = 13,978,537.99/5,611.40
  6. Step 6: Final answer
    x = 2,491.10

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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.