Home / 3,018.85-4,165.77-1,692.34

Finding the Fourth Proportional to 3,018.85, 4,165.77 and 1,692.34

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Solution

The fourth proportional to 3,018.85, 4,165.77 and 1,692.34 is: 2,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.85 : 4,165.77 = 1,692.34 : x
  2. Step 2: Convert to fraction form
    3,018.85/4,165.77 = 1,692.34/x
  3. Step 3: Cross multiply
    3,018.85x = 4,165.77 × 1,692.34
  4. Step 4: Simplify right side
    3,018.85x = 7,049,899.20
  5. Step 5: Solve for x
    x = 7,049,899.20/3,018.85
  6. Step 6: Final answer
    x = 2,335.29

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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.