Home / 2,774.54-4,158.21-1,129.17

Finding the Fourth Proportional to 2,774.54, 4,158.21 and 1,129.17

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Solution

The fourth proportional to 2,774.54, 4,158.21 and 1,129.17 is: 1,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.54 : 4,158.21 = 1,129.17 : x
  2. Step 2: Convert to fraction form
    2,774.54/4,158.21 = 1,129.17/x
  3. Step 3: Cross multiply
    2,774.54x = 4,158.21 × 1,129.17
  4. Step 4: Simplify right side
    2,774.54x = 4,695,325.99
  5. Step 5: Solve for x
    x = 4,695,325.99/2,774.54
  6. Step 6: Final answer
    x = 1,692.29

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1.5x scale

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.