Home / 1,308.19-1,962.06-383.73

Finding the Fourth Proportional to 1,308.19, 1,962.06 and 383.73

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Solution

The fourth proportional to 1,308.19, 1,962.06 and 383.73 is: 575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.19 : 1,962.06 = 383.73 : x
  2. Step 2: Convert to fraction form
    1,308.19/1,962.06 = 383.73/x
  3. Step 3: Cross multiply
    1,308.19x = 1,962.06 × 383.73
  4. Step 4: Simplify right side
    1,308.19x = 752,889.55
  5. Step 5: Solve for x
    x = 752,889.55/1,308.19
  6. Step 6: Final answer
    x = 575.52

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Double scale
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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.