Home / 1,260.72-1,890.92-336.36

Finding the Fourth Proportional to 1,260.72, 1,890.92 and 336.36

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Solution

The fourth proportional to 1,260.72, 1,890.92 and 336.36 is: 504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.72 : 1,890.92 = 336.36 : x
  2. Step 2: Convert to fraction form
    1,260.72/1,890.92 = 336.36/x
  3. Step 3: Cross multiply
    1,260.72x = 1,890.92 × 336.36
  4. Step 4: Simplify right side
    1,260.72x = 636,029.85
  5. Step 5: Solve for x
    x = 636,029.85/1,260.72
  6. Step 6: Final answer
    x = 504.50

Related Problems

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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.