Home / 7,189.44-10,778.40-3,727.68

Finding the Fourth Proportional to 7,189.44, 10,778.40 and 3,727.68

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Solution

The fourth proportional to 7,189.44, 10,778.40 and 3,727.68 is: 5,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.44 : 10,778.40 = 3,727.68 : x
  2. Step 2: Convert to fraction form
    7,189.44/10,778.40 = 3,727.68/x
  3. Step 3: Cross multiply
    7,189.44x = 10,778.40 × 3,727.68
  4. Step 4: Simplify right side
    7,189.44x = 40,178,426.11
  5. Step 5: Solve for x
    x = 40,178,426.11/7,189.44
  6. Step 6: Final answer
    x = 5,588.53

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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.