Home / 3,329.50-4,991.90-1,479.60

Finding the Fourth Proportional to 3,329.50, 4,991.90 and 1,479.60

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Solution

The fourth proportional to 3,329.50, 4,991.90 and 1,479.60 is: 2,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.50 : 4,991.90 = 1,479.60 : x
  2. Step 2: Convert to fraction form
    3,329.50/4,991.90 = 1,479.60/x
  3. Step 3: Cross multiply
    3,329.50x = 4,991.90 × 1,479.60
  4. Step 4: Simplify right side
    3,329.50x = 7,386,015.24
  5. Step 5: Solve for x
    x = 7,386,015.24/3,329.50
  6. Step 6: Final answer
    x = 2,218.36

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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.