Home / 7,390.53-10,198.11-4,405.80

Finding the Fourth Proportional to 7,390.53, 10,198.11 and 4,405.80

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Solution

The fourth proportional to 7,390.53, 10,198.11 and 4,405.80 is: 6,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.53 : 10,198.11 = 4,405.80 : x
  2. Step 2: Convert to fraction form
    7,390.53/10,198.11 = 4,405.80/x
  3. Step 3: Cross multiply
    7,390.53x = 10,198.11 × 4,405.80
  4. Step 4: Simplify right side
    7,390.53x = 44,930,833.04
  5. Step 5: Solve for x
    x = 44,930,833.04/7,390.53
  6. Step 6: Final answer
    x = 6,079.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.