Home / 2,788.06-4,180.77-1,031.86

Finding the Fourth Proportional to 2,788.06, 4,180.77 and 1,031.86

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Solution

The fourth proportional to 2,788.06, 4,180.77 and 1,031.86 is: 1,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.06 : 4,180.77 = 1,031.86 : x
  2. Step 2: Convert to fraction form
    2,788.06/4,180.77 = 1,031.86/x
  3. Step 3: Cross multiply
    2,788.06x = 4,180.77 × 1,031.86
  4. Step 4: Simplify right side
    2,788.06x = 4,313,969.33
  5. Step 5: Solve for x
    x = 4,313,969.33/2,788.06
  6. Step 6: Final answer
    x = 1,547.30

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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.