Home / 3,077.21-4,614.60-1,128.35

Finding the Fourth Proportional to 3,077.21, 4,614.60 and 1,128.35

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Solution

The fourth proportional to 3,077.21, 4,614.60 and 1,128.35 is: 1,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.21 : 4,614.60 = 1,128.35 : x
  2. Step 2: Convert to fraction form
    3,077.21/4,614.60 = 1,128.35/x
  3. Step 3: Cross multiply
    3,077.21x = 4,614.60 × 1,128.35
  4. Step 4: Simplify right side
    3,077.21x = 5,206,899.68
  5. Step 5: Solve for x
    x = 5,206,899.68/3,077.21
  6. Step 6: Final answer
    x = 1,692.08

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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.