Home / 4,329.04-6,485.40-2,135.20

Finding the Fourth Proportional to 4,329.04, 6,485.40 and 2,135.20

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Solution

The fourth proportional to 4,329.04, 6,485.40 and 2,135.20 is: 3,198.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,329.04 : 6,485.40 = 2,135.20 : x
  2. Step 2: Convert to fraction form
    4,329.04/6,485.40 = 2,135.20/x
  3. Step 3: Cross multiply
    4,329.04x = 6,485.40 × 2,135.20
  4. Step 4: Simplify right side
    4,329.04x = 13,847,626.08
  5. Step 5: Solve for x
    x = 13,847,626.08/4,329.04
  6. Step 6: Final answer
    x = 3,198.78

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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.