Home / 3,519.10-5,280.68-1,329.36

Finding the Fourth Proportional to 3,519.10, 5,280.68 and 1,329.36

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Solution

The fourth proportional to 3,519.10, 5,280.68 and 1,329.36 is: 1,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.10 : 5,280.68 = 1,329.36 : x
  2. Step 2: Convert to fraction form
    3,519.10/5,280.68 = 1,329.36/x
  3. Step 3: Cross multiply
    3,519.10x = 5,280.68 × 1,329.36
  4. Step 4: Simplify right side
    3,519.10x = 7,019,924.76
  5. Step 5: Solve for x
    x = 7,019,924.76/3,519.10
  6. Step 6: Final answer
    x = 1,994.81

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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.