Home / 5,611.62-8,417.38-2,148.87

Finding the Fourth Proportional to 5,611.62, 8,417.38 and 2,148.87

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Solution

The fourth proportional to 5,611.62, 8,417.38 and 2,148.87 is: 3,223.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.62 : 8,417.38 = 2,148.87 : x
  2. Step 2: Convert to fraction form
    5,611.62/8,417.38 = 2,148.87/x
  3. Step 3: Cross multiply
    5,611.62x = 8,417.38 × 2,148.87
  4. Step 4: Simplify right side
    5,611.62x = 18,087,855.87
  5. Step 5: Solve for x
    x = 18,087,855.87/5,611.62
  6. Step 6: Final answer
    x = 3,223.29

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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.