Home / 3,018.40-4,165.40-1,692.11

Finding the Fourth Proportional to 3,018.40, 4,165.40 and 1,692.11

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Solution

The fourth proportional to 3,018.40, 4,165.40 and 1,692.11 is: 2,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.40 : 4,165.40 = 1,692.11 : x
  2. Step 2: Convert to fraction form
    3,018.40/4,165.40 = 1,692.11/x
  3. Step 3: Cross multiply
    3,018.40x = 4,165.40 × 1,692.11
  4. Step 4: Simplify right side
    3,018.40x = 7,048,305.41
  5. Step 5: Solve for x
    x = 7,048,305.41/3,018.40
  6. Step 6: Final answer
    x = 2,335.11

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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.