Home / 2,330.76-3,216.06-1,399.26

Finding the Fourth Proportional to 2,330.76, 3,216.06 and 1,399.26

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Solution

The fourth proportional to 2,330.76, 3,216.06 and 1,399.26 is: 1,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.76 : 3,216.06 = 1,399.26 : x
  2. Step 2: Convert to fraction form
    2,330.76/3,216.06 = 1,399.26/x
  3. Step 3: Cross multiply
    2,330.76x = 3,216.06 × 1,399.26
  4. Step 4: Simplify right side
    2,330.76x = 4,500,104.12
  5. Step 5: Solve for x
    x = 4,500,104.12/2,330.76
  6. Step 6: Final answer
    x = 1,930.75

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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.