Home / 3,018.55-4,165.76-1,692.68

Finding the Fourth Proportional to 3,018.55, 4,165.76 and 1,692.68

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Solution

The fourth proportional to 3,018.55, 4,165.76 and 1,692.68 is: 2,335.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.55 : 4,165.76 = 1,692.68 : x
  2. Step 2: Convert to fraction form
    3,018.55/4,165.76 = 1,692.68/x
  3. Step 3: Cross multiply
    3,018.55x = 4,165.76 × 1,692.68
  4. Step 4: Simplify right side
    3,018.55x = 7,051,298.64
  5. Step 5: Solve for x
    x = 7,051,298.64/3,018.55
  6. Step 6: Final answer
    x = 2,335.99

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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.