Home / 3,587.76-5,382.36-1,809.72

Finding the Fourth Proportional to 3,587.76, 5,382.36 and 1,809.72

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Solution

The fourth proportional to 3,587.76, 5,382.36 and 1,809.72 is: 2,714.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.76 : 5,382.36 = 1,809.72 : x
  2. Step 2: Convert to fraction form
    3,587.76/5,382.36 = 1,809.72/x
  3. Step 3: Cross multiply
    3,587.76x = 5,382.36 × 1,809.72
  4. Step 4: Simplify right side
    3,587.76x = 9,740,564.54
  5. Step 5: Solve for x
    x = 9,740,564.54/3,587.76
  6. Step 6: Final answer
    x = 2,714.94

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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.