Home / 5,050.20-7,578.49-2,128.50

Finding the Fourth Proportional to 5,050.20, 7,578.49 and 2,128.50

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Solution

The fourth proportional to 5,050.20, 7,578.49 and 2,128.50 is: 3,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,050.20 : 7,578.49 = 2,128.50 : x
  2. Step 2: Convert to fraction form
    5,050.20/7,578.49 = 2,128.50/x
  3. Step 3: Cross multiply
    5,050.20x = 7,578.49 × 2,128.50
  4. Step 4: Simplify right side
    5,050.20x = 16,130,829.96
  5. Step 5: Solve for x
    x = 16,130,829.96/5,050.20
  6. Step 6: Final answer
    x = 3,194.10

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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.