Home / 3,482.90-5,219.60-1,920.56

Finding the Fourth Proportional to 3,482.90, 5,219.60 and 1,920.56

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Solution

The fourth proportional to 3,482.90, 5,219.60 and 1,920.56 is: 2,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.90 : 5,219.60 = 1,920.56 : x
  2. Step 2: Convert to fraction form
    3,482.90/5,219.60 = 1,920.56/x
  3. Step 3: Cross multiply
    3,482.90x = 5,219.60 × 1,920.56
  4. Step 4: Simplify right side
    3,482.90x = 10,024,519.28
  5. Step 5: Solve for x
    x = 10,024,519.28/3,482.90
  6. Step 6: Final answer
    x = 2,878.21

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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.