Home / 5,620.43-8,424.98-1,920.14

Finding the Fourth Proportional to 5,620.43, 8,424.98 and 1,920.14

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Solution

The fourth proportional to 5,620.43, 8,424.98 and 1,920.14 is: 2,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.43 : 8,424.98 = 1,920.14 : x
  2. Step 2: Convert to fraction form
    5,620.43/8,424.98 = 1,920.14/x
  3. Step 3: Cross multiply
    5,620.43x = 8,424.98 × 1,920.14
  4. Step 4: Simplify right side
    5,620.43x = 16,177,089.37
  5. Step 5: Solve for x
    x = 16,177,089.37/5,620.43
  6. Step 6: Final answer
    x = 2,878.27

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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.