Home / 2,105.54-3,158.30-1,130.30

Finding the Fourth Proportional to 2,105.54, 3,158.30 and 1,130.30

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Solution

The fourth proportional to 2,105.54, 3,158.30 and 1,130.30 is: 1,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105.54 : 3,158.30 = 1,130.30 : x
  2. Step 2: Convert to fraction form
    2,105.54/3,158.30 = 1,130.30/x
  3. Step 3: Cross multiply
    2,105.54x = 3,158.30 × 1,130.30
  4. Step 4: Simplify right side
    2,105.54x = 3,569,813.52
  5. Step 5: Solve for x
    x = 3,569,813.52/2,105.54
  6. Step 6: Final answer
    x = 1,695.44

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Half scale
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Double scale
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Similar ratio
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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.