Home / 1,260.16-1,890.38-335.72

Finding the Fourth Proportional to 1,260.16, 1,890.38 and 335.72

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Solution

The fourth proportional to 1,260.16, 1,890.38 and 335.72 is: 503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.16 : 1,890.38 = 335.72 : x
  2. Step 2: Convert to fraction form
    1,260.16/1,890.38 = 335.72/x
  3. Step 3: Cross multiply
    1,260.16x = 1,890.38 × 335.72
  4. Step 4: Simplify right side
    1,260.16x = 634,638.37
  5. Step 5: Solve for x
    x = 634,638.37/1,260.16
  6. Step 6: Final answer
    x = 503.62

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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.