Home / 3,483.15-5,219.97-1,920.80

Finding the Fourth Proportional to 3,483.15, 5,219.97 and 1,920.80

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Solution

The fourth proportional to 3,483.15, 5,219.97 and 1,920.80 is: 2,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.15 : 5,219.97 = 1,920.80 : x
  2. Step 2: Convert to fraction form
    3,483.15/5,219.97 = 1,920.80/x
  3. Step 3: Cross multiply
    3,483.15x = 5,219.97 × 1,920.80
  4. Step 4: Simplify right side
    3,483.15x = 10,026,518.38
  5. Step 5: Solve for x
    x = 10,026,518.38/3,483.15
  6. Step 6: Final answer
    x = 2,878.58

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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.