Home / 2,040.26-2,815.55-1,108.76

Finding the Fourth Proportional to 2,040.26, 2,815.55 and 1,108.76

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Solution

The fourth proportional to 2,040.26, 2,815.55 and 1,108.76 is: 1,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.26 : 2,815.55 = 1,108.76 : x
  2. Step 2: Convert to fraction form
    2,040.26/2,815.55 = 1,108.76/x
  3. Step 3: Cross multiply
    2,040.26x = 2,815.55 × 1,108.76
  4. Step 4: Simplify right side
    2,040.26x = 3,121,749.60
  5. Step 5: Solve for x
    x = 3,121,749.60/2,040.26
  6. Step 6: Final answer
    x = 1,530.08

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Half scale
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Double scale
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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.