Home / 3,614.07-5,421.90-1,305.57

Finding the Fourth Proportional to 3,614.07, 5,421.90 and 1,305.57

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Solution

The fourth proportional to 3,614.07, 5,421.90 and 1,305.57 is: 1,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.07 : 5,421.90 = 1,305.57 : x
  2. Step 2: Convert to fraction form
    3,614.07/5,421.90 = 1,305.57/x
  3. Step 3: Cross multiply
    3,614.07x = 5,421.90 × 1,305.57
  4. Step 4: Simplify right side
    3,614.07x = 7,078,669.98
  5. Step 5: Solve for x
    x = 7,078,669.98/3,614.07
  6. Step 6: Final answer
    x = 1,958.64

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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.