Home / 5,614.38-8,421.84-1,719.09

Finding the Fourth Proportional to 5,614.38, 8,421.84 and 1,719.09

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Solution

The fourth proportional to 5,614.38, 8,421.84 and 1,719.09 is: 2,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.38 : 8,421.84 = 1,719.09 : x
  2. Step 2: Convert to fraction form
    5,614.38/8,421.84 = 1,719.09/x
  3. Step 3: Cross multiply
    5,614.38x = 8,421.84 × 1,719.09
  4. Step 4: Simplify right side
    5,614.38x = 14,477,900.93
  5. Step 5: Solve for x
    x = 14,477,900.93/5,614.38
  6. Step 6: Final answer
    x = 2,578.72

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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.