Home / 3,018.80-4,165.80-1,692.28

Finding the Fourth Proportional to 3,018.80, 4,165.80 and 1,692.28

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Solution

The fourth proportional to 3,018.80, 4,165.80 and 1,692.28 is: 2,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.80 : 4,165.80 = 1,692.28 : x
  2. Step 2: Convert to fraction form
    3,018.80/4,165.80 = 1,692.28/x
  3. Step 3: Cross multiply
    3,018.80x = 4,165.80 × 1,692.28
  4. Step 4: Simplify right side
    3,018.80x = 7,049,700.02
  5. Step 5: Solve for x
    x = 7,049,700.02/3,018.80
  6. Step 6: Final answer
    x = 2,335.27

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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.