Home / 3,181.07-4,389.72-1,764.74

Finding the Fourth Proportional to 3,181.07, 4,389.72 and 1,764.74

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Solution

The fourth proportional to 3,181.07, 4,389.72 and 1,764.74 is: 2,435.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.07 : 4,389.72 = 1,764.74 : x
  2. Step 2: Convert to fraction form
    3,181.07/4,389.72 = 1,764.74/x
  3. Step 3: Cross multiply
    3,181.07x = 4,389.72 × 1,764.74
  4. Step 4: Simplify right side
    3,181.07x = 7,746,714.47
  5. Step 5: Solve for x
    x = 7,746,714.47/3,181.07
  6. Step 6: Final answer
    x = 2,435.25

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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.